Warner Bros. Studio Lot 12 was under tight security, and the crew was preparing to shoot a scene in a surreal set.
Inside a vast, high-ceilinged cave-like room with black walls, thin white grid lines divided the area into multiple zones. Over a hundred overhead lights hung from above. Below them were layers of diffusion and translucent gauze fabric. The lighting cast was neutral, clean, and shadowless. Under the lights, actor Cillian Murphy knelt on the floor.
With the call of "Action," two IMAX cameras began rolling—one capturing the entire scene with a wide-angle lens, the other focused on tracking the movement.
Suddenly, a crack appeared on the floor, and a large, oddly-shaped set piece fell down. Cillian Murphy and the set collapsed into a pit. Dust billowed. Director Duke shouted, "Cut!" Moments later, a hydraulic lift pushed the sunken floor back into place, readying for a second take.
After returning to Los Angeles from the Whistler Mountain ski resort in Canada, Duke went back to the studio to shoot the remaining scenes.
As with the earlier filming, even though the entire film’s premise was absurd, Duke still emphasized realism in cinematography.
"At the end of the day, when we’re dreaming, we believe the dream is real. That’s a line in the movie."
During a break, Duke told visiting Sophia Coppola, "That’s important for every aspect of the cinematography and the film. We didn’t want the dream sequences to feel artificially surreal. I want those sequences to feel just as grounded as the real world. So the approach is to make dreams feel real."
Sophia Coppola had read Duke’s script. She nodded slightly. Duke wasn’t just a friend—he felt more like a mentor. Even though their philosophies and filmmaking styles were worlds apart, every visit brought her something new.
"Sometimes the characters don’t realize they’re dreaming, so the visual transitions between reality and dream must be seamless unless at specific moments when I want the audience to sense the difference," Duke continued. "Most of the surreal feeling in the film comes from the environments, not the camera work. By maintaining a sense of realism, I believe it’s possible to create a subtle feeling of unease or strangeness when needed—without breaking the immersion."
"Why not use film stock?"
Taking the chance while Duke was free, Sophia Coppola asked, "You’ve always been interested in high-resolution and high-definition formats. Film has an extremely high exposure latitude and dynamic range, offering greater creative flexibility. I can underexpose by three stops and overexpose by five in the same frame, and still present the full range on screen."
Duke, facing his friend, didn’t hold anything back. "Because film is too expensive. Especially the cost of post-production. Digital technology represents the future."
Over the past few years, Duke hadn’t just focused on digital he had explored other areas too.
He had met the legendary Douglas Trumbull and attended a Showscan demo a system invented by Trumbull using 65mm film shot and projected at high speed. He also studied 70, a system designed by Robert Weisberg, capable of 48fps shooting and projection. Even though 70 had extraordinary clarity, its image quality was only marginally better than HD...
There was also a factor Duke couldn’t ignore cost. All of those were significantly more expensive than digital.
Soon after, Duke resumed filming. This time, the next shots involved high-speed slow-motion.
This film used a lot of high-speed photography. Duke mainly used the Photo-Sonics 4ER with Panavision lenses, which could shoot up to 360fps, and the Photo-Sonics 4E Rotary Prism, which could reach 1500fps. For certain high-speed scenes, the PanArri 435ESA and HD cameras were also employed.
Slow motion was essential to Inception because of the unique relationship between time in dreams and reality. Duke wanted to use high-speed photography and dramatic shifts in motion to serve the narrative—not just for visual spectacle.
Next, Duke had the crew move to another set, which represented a hotel bar in the film where gravity would suddenly shift and the weather outside would change abruptly.
This set, built by Hannah team, was tilted at a 30-degree angle. Outside the windows was a green screen, which would later be replaced with actual city scenery in post.
To simulate changing lighting, Duke had all the fixtures connected to a single dimming board. The lighting in this scene began at sunset, so Molebeam lights were used with CTS gels. A 60-foot-long softbox was packed with maxi-brute lights, covered in diffusion fabric to simulate overcast skies.
This scene portrayed surrealism through lighting technique it was a naturalistic approach. All light sources had motivation, but what made it extraordinary was how they changed. Coupled with the slanted set, it could create a deeply unsettling atmosphere.
Duke always strove to keep shots from looking too complicated. He didn’t want the lighting to leave a heavy footprint or rather, any footprint at all. The trick was working as quickly and simply as possible without rushing the job.
Another scene was filmed on the third floor of a downtown Los Angeles hotel. Leonardo, playing Cobb, stepped backward into a bathtub filled with water—his dream jolted to an end...
To enhance the effect of Cobb transitioning from dream to waking state, Duke called for a dramatic frame rate shift—up to 1000fps. This required an even faster Photo-Sonics camera.
After nearly a week of filming in Los Angeles, the production reached its final stage. All main actors gathered once again at Warner Bros. Studio in Burbank, sitting inside an airplane cabin set, to shoot the last scene.
At Duke’s command, the camera rolled. The main camera first gave Leonardo DiCaprio a close-up. He opened his eyes, looking around with a mix of confusion and fear...
"We’ll be arriving in Los Angeles in twenty minutes," a flight attendant approached him. "Do you need an immigration form?"
"Thanks." Leonardo looked dazed.
Then, he looked across the aisle. Joseph Gordon-Levitt and Scarlett Johansson exchanged a glance with him, then smiled slightly. Ken Watanabe immediately picked up the phone and started dialing...
"Cut!" Duke called out.
All cast and crew turned toward him, seemingly waiting for Duke to declare the shoot finished.
But those words didn’t come out of Duke’s mouth. He stood up from the director’s chair, walked around the set, and called out loudly, "Let’s do another take."
Then, Duke waved over Leonardo and a few others. The actors walked over one after another and stood nearby.
"Leo, keep the same performance you had just now."
Duke then turned to Joseph Gordon-Levitt and Scarlett Johansson. "You two, pay attention. In the next shot, look at Leo as if you’re seeing a stranger."
"Look at him like a stranger?" Joseph Gordon-Levitt and Scarlett Johansson didn’t quite get what Duke meant.
Duke didn’t bother to explain in detail and simply said, "You’ve got fifteen minutes to adjust."
Back at the director’s monitor, Duke watched the playback of the last take, but his mind wasn’t really on it.
The countless fans’ passionate participation and interpretations were an important factor in the box office success of Inception. What he had just done was meant to add another layer of interpretation. Whether or not these interpretations actually fit the film’s narrative wasn’t important. A thousand people will have a thousand different Hamlets. Interpretation was just part of the film’s marketing strategy.
Just like when The Matrix came out millions of fan theories and interpretations only boosted its box office.
So in the scene where Leonardo’s character wakes up from the dream, Duke directed Joseph Gordon-Levitt and Scarlett Johansson’s characters not to exchange any eye contact or facial expressions with him. That was done precisely to open up more room for interpretation.
On one hand, they were still on the same plane, so not interacting seemed perfectly normal.
On the other hand, it easily sparked the idea that maybe Cobb wasn’t a dream thief at all. That the spinning top’s movement had nothing to do with dreams. That the entire dream-heist story was just an elaborate dream Cobb had in first class on a flight home, and he just went back to see his kids.
Just as the next shoot began, Duke called "Cut" again. He asked Leonardo to intensify the sense of shock in his expression when waking up, as if surprised the plane passengers were all from his dream...
It was all a dream. A vivid dream Cobb had on his way home. His wife’s story, his crimes, the dream-stealing it was all just part of the dream, not reality.
As long as someone had that interpretation, Duke had achieved his goal. And even if no one did, he had a massive online army who could easily spread that theory far and wide.
Audiences who watched a film with answers that were deliberately vague always wanted to find the truth. But their search for the truth was exactly what fell into the trap set by the director and the film’s marketing team.
Compared to overwhelming ad campaigns, this kind of viral marketing strategy was much more clever. ɴᴇᴡ ɴᴏᴠᴇʟ ᴄʜᴀᴘᴛᴇʀs ᴀʀᴇ ᴘᴜʙʟɪsʜᴇᴅ ᴏɴ 𝗻𝗼𝘃𝗲𝗹✶𝗳𝗶𝗿𝗲✶𝗻𝗲𝘁
Of course, both the film and its related marketing needed to be carefully balanced. Viral marketing was a double-edged sword. If done excessively, it would only turn people off.
Fortunately, Warner Bros.’ marketing and distribution department had plenty of experience in this area and had designed a comprehensive strategy. Duke wasn’t too worried about it.
The rest of the shoot went smoothly. After two more takes, Duke gave the final "Okay." All scenes for Inception were officially wrapped. The others could now take their holiday, but Duke didn’t plan on giving himself a long break. His schedule this year was tight. Just three days later, he’d be meeting up with Anna Prinz and the rest of the post-production team to begin work on Inception’s editing.