In Buster Keaton's Sherlock Jr., Keaton's protagonist actually enters into a film while it is playing in a cinema, as does the main character in the Arnold Schwarzenegger film The Last Action Hero. A similar device is used in the music video for the song "Take On Me" by A-ha, which features a woman entering a pencil sketch. Conversely, Woody Allen's Purple Rose of Cairo is about a film character exiting the film to interact with the real world. Allen's earlier film Play it Again, Sam featured liberal use of characters, dialogue and clips from the film classic Casablanca as a central device.
in buster keaton's sherlock jr keaton's protagonist actually enters into a film while it is playing in a cinema as does the main character in the arnold schwarzenegger film the last action hero a similar device is used in the music video for the song "take on me" by a-ha which features a woman entering a pencil sketch conversely woody allen's purple rose of cairo is about a film character exiting the film to interact with the real world allen's earlier film play it again sam featured liberal use of characters dialogue and clips from the film classic casablanca as a central device