Miscellany: Re-cut movie trailers
With the right editing techniques, you can easily change the entire tone of a film (see the "Love Conquers All" version of "Brazil" if you don't believe me). One neat byproduct of the Youtube age is that amateur editors can prepare astonishingly funny parody movie trailers.
Here are two of the best examples.
"Scary Mary" re-imagines "Mary Poppins" as a horror flick
"Shining" portrays "The Shining" as an upbeat father-son movie