
- Video edition
- Wikimedia Commons
- Original language
- No spoken dialogue. Intertitles: English.
- This copy runs
- 44:05
- Subtitles
- No subtitle track in this language
Wikimedia Commons · Buster Keaton · Public domain
Synopsis
A cinema projectionist studies detective work and hopes to impress the woman he loves. When a rival frames him for theft, his amateur investigation goes badly. Back in the projection booth, a dream lets him enter the film on screen and become the master detective he cannot yet manage to be outside it.
Cast

Behind the scenes
Keaton builds the central fantasy around a character crossing into a projected movie. Carefully matched positions and edits make changes of setting seem to happen around his body, turning film technique itself into a source of physical comedy.
Sources and availability
General references identify the work and its copy. A reference beside an editorial section is linked to the claims checked in that section.
Work catalogued as public domain in the United States.
The public-domain references concern the original films in the United States. Rights can differ for other countries, editions, restorations, music or translations. Sources are listed on each film page.
Availability checked on September 12, 2026.
Photograph credit
Photographs cropped, resized and optimized as WebP, displayed in monochrome.
- Buster Keaton — Unknown author · Public domain
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