I like good movies about time travel. Of course there's Back To The Future but there's also The Time Machine and not to mention Somewhere In Time, which deals with time travel by hypnosis.
The Time Machine, very good movie. One of my favourites though is Time Cop, yeah a bit cheesy even for JCVD, but I loved it nonetheless, especially the scene with JCVD fighting in the kitchen, future version.
If you want to read a really fun, interesting book, check out "Replay" by Ken Grimwood. Not exactly a time travel tale, but close to it. It's about a guy who drops dead in his office when he's in his forties.....and wakes up in his college dorm when he's 19......and he remembers stuff that's going to happen.