Michael Rooker was one of the best things about The Walking Dead's first few seasons as Merle — and now he's going to be an alien primitive, rocking the cosmos in Marvel's Guardians of the Galaxy.

Take a look at the above photos of John Cho and Zoe Saldana on the set of the new Star Trek sequel, via TrekMovie. Check out what they're wearing under the regulation black Bad Robot parkas (which all castmembers wear on set, to cover up their costumes.)

Nimoy for T5! The game Yoostar was demonstrated at E3 this week. In the video game you get to replace the actor in a select number of films, like The Terminator. Watch Leonard Nimoy stand in for Arnold Schwarzenegger.

Who will be the big screen's next Sigourney Weaver? We've had a few years now without any great action movies starring women, but 2010 could be the year this changes. Here are six picks for the action heroines of tomorrow.

This fascinating behind the scenes look at Avatar is like a crash course in motion-capture, in which James Cameron breaks down his favorite scene in the film and shows you how it was created. And there's tons of new footage.

Zoe Saldana's blue-skinned Avatar creature? All is answered in these short videos that gives each character and actor some additional screen time to reveal more footage, behind-the-scenes secrets... and a crop of spoilers.

James Cameron's Avatar score will be filled with singing in the Na'vi tongue. Zoe Saldana talked Na'vi native to us on camera, and we liked it... a lot. But James Horner's three-hour soundtrack is not just blue people singing.

Two posters have been released from upcoming space epics. One is a skin-peeling look into the dark, horrific world of Pandorum. The other shows us the alien creature that Zoe Saldana will be transformed into in James Cameron's Avatar.

What does it take for women to get brilliant action-hero roles in Hollywood? Sigourney Weaver, Zoe Saldana, Eliza Dushku and Elizabeth Mitchell talked about heroic archetypes, and what it takes to get to wear pants when jumping between tall buildings.