ORIGINAL MOVIE TRAILER EXERCISE — The Empty Booth Audience promise: a short mystery about a supposedly empty booth. Question to preserve: who is waiting behind the glass? Available practice source: authored 12-second held-reveal graphic reference, figure first present at frame 240 (8 seconds at 30 fps). Teaser edit: use source frames 0–209 (0 to before 7 seconds), then hold the original title card for 3 seconds. Output is 10 seconds, silent. No reveal frame is included. Full production approach: generate and review the film's actual source takes first, then select setup, escalation and an unresolved question for the trailer. Record actual source in/out and output timings. Confirm any supplied footage/audio is appropriate for the intended use. These reference assets are not AI footage, a generated soundtrack, a release announcement or a trailer-quality benchmark. The script is not an API payload, and timings are editorial decisions rather than model guarantees.