[pascalr]

It isn't just a kid's movie. You should watch it again.

Check on Google for "best philosophical movies" and it's always in the top 10.

[Retric]

If you want deep science fiction that's still accessible, I would suggest 'the cold equations'. It's not a high budget film, but it captures the essence of classic science fiction instead of the Disneyland crap that makes up most of those lists.