Avatar

Maybe it isn't the most original of stories but the fact is, "Avatar" never fails on a level of pure entertainment. If you want a fun, action-packed, visually stunning and thrilling ride, watch it. The script might not be perfect, but it's not as predictable as people say either.
Starring Sam Worthington, Zoe Saldana, Stephen Lang, Giovanni Ribisi, Michelle Rodriguez, Joel Moore, and Sigourney Weaver.