Slumdog Millionaire

The movie is about a teenager who is sitting in the hot seat for a game show in India very similar to "Who Wants to be a Millionaire?". I remember really liking the format because I believe Indian Regis Philbin asks the protagonist a question and he answers based on a flashback from his life, which is essentially very shitty. I think his answering ability is so incredible that Indian Regis almost doesn't believe him. 

There is a girl he's trying to get in the process so that's thrown in somewhere and obviously he gets her. He also wins I think thus the title of the movie. 

Importantly, the song "Paper Planes" by MIA is introduced to the world and suddenly everyone was making little finger guns in da club.