Movies sometimes show characters watching other movies--often completely fake. Some of these are clearly worthy of becoming feature films themselves, as illustrated by this supercut made by Screen Junkies. The editors show the best movies-in-movies from South Park: Bigger Longer & Uncut, Scary Movie, Jay & Silent Bob Strike Back, Boogie Nights, The Big Lebowski, For Your Consideration, Matinee, Singin' in the Rain, Inglourious Basterds, Home Alone, The Last Action Hero, Grindhouse, UHF, Tropic Thunder, Scott Pilgrim vs. The World, The Simpsons Movie, Funny People, and Scrooged.
-via Daily of the Day