[kgodey]

I haven't seen these mentioned yet: Galaxy Quest, The Fifth Element, Valerian and the City of a Thousand Planets, Oblivion, Tron: Legacy, Mission to Mars, Pacific Rim, Bicentennial Man, Alita: Battle Angel (some of these may be PG-13)

Treasure Planet and Titan A.E. are also good animated movies, although Treasure Planet is more science-fantasy.

I'd also second Back to the Future, Contact, Interstellar, Gattaca, October Sky

[jackothy]

I think Tron: Legacy, Pacific Rim, and Alita: Battle Angel should all be great for any 12-year-old. High-concept (12-year-old me loved the "what if?" question), lots of action, and not too adult. Great suggestions.

I think some of the other ones like Oblivion, Contact, and Gattaca might be a bit too dry/subtle/pondering (depending on exactly how tedious he found 2001 to be).