I love time travelling movies. I have seen many.
Frequency is one of my top fav movies. It's quite old movie. For those of you who haven't see it and not really into sci-fi, trust me you won't be disappointed.
you can read more about it here
http://www.imdb.com/title/tt0186151/
Butterfly Effect is my all time fav. I still talk about the ending of that movie with a friend of mine who I watched it with. Brilliantly written.
Bad Santa - Simply Hilarious