I have always said I do not have a favorite film, food or anything else, because I always have assumed there are so many great things that you cannot and shouldn't choose. Just enjoy all the things you like and dont get stuck on one. Or DO get stuck on one if you really want to.
But today I break my rules. I do have a favorite movie.
3 Idiots.
Why? See it and you will find your own reasons for it.