Dinotopia

After a plane crash, two opposing half-brothers find themselves on an amazing lost island where enlightened pacifist humans and intelligent talking dinosaurs have created a utopian medieval society. But imminent disaster approaches.

Dinotopia is a 2002 adventure fantasy movie, starring Alice Krige, David Thewlis, Katie Carr. It holds an IMDb rating of 6.5/10 from 7,180 votes and runs 1h 23m.