[js2]

A lot of recency bias in the suggestions. Here's some which are older or more obscure that I enjoyed and that I wouldn't have minded showing my kids at 12.

Gattaca, Moon, Gravity, Contact, Space Camp, Andromeda Strain, the original Westworld (1973), the first two Star Trek movies, the STTNG TV series, Another Earth (2011, PG-13), The Man from Earth, Fantastic Voyage, War of the Worlds (1953), The Day the Earth Stood Still, Close Encounters of the Third Kind.