Anybody can propose to their girlfriend with a message on the jumbotron at a spoting event. It's been done to death. So when a fellow named Matt wanted to ask his girlfriend Ginny to marry him, he had to come up with another idea.
So he made a fake movie trailer in which he asks Ginny's father for her hand. And what movie did he pick? -- well, the rom-com tearjerker "Fast Five" of course. He writes in his YouTube description:
My girlfriend Ginny gets taken to the movie theater to see "Fast Five". After a preview for the Hangover 2, a trailer for a movie comes on. A trailer I made of her father and I where I ask her father for her hand in marriage. After he gives me permission, I race off to the theater she is at to ask her to marry me. What she doesn't know is our familiy and friends are in the theater with her watching the whole thing, along with about 100 strangers ;-)
Check out the video, complete with a hidden camera capturing Ginny's reaction: