What movie should I play for boyscouts?

I'm working at a boyscout camp and we play a movie outside via a
projector on wednesday nights.
Does anyone know a good movie to play for a bunch of young boys. It
HAS to be clean. Don't want leaders getting pissed off because they
say a swear word or immature joke.
The theme for this year is cowboys and western stuff and it would be
nice to play something theme related.

Don't say Toy Story 1, 2, or 3.

What are some good kids movies for young boys? western/with cowboys?