zoe-saldana-web.jpgSAN DIEGO — How many more colors can Zoe Saldana be on the big screen? “Well, the rainbow has a lot of colors,” Saldana said in an interview at Comic-Con, laughing. “I dig it. I like being in space. I get to play less girlfriends, more female parts, more women. So I find it meaty.”

The actress portrays green-skinned alien Gamora in Marvel’s Guardians of the Galaxy after going blue in James Cameron’s Avatar, a role she’s expected to return to for sequels. And she recently reprised her other space-bound character, Uhura, in JJ Abrams’ Star Trek Into Darkness.

“It’s a testament to how creative the people that conceive supernatural and science-fiction kind of stories,” Saldana, 35, said of her love for the genre. “They’re able to build something out of nothing by just imagining it. I have a huge fascination with that. Filmmakers like JJ, like (Guardians director) James (Gunn), like James Cameron. … You need to be really, really special to do that. So I like being with special people.”

Chris Pratt is among Saldana’s co-stars in Guardians, which had been filming for just a few weeks in the U.K. before its actors dropped in to show fans footage.

Pratt plays Peter Quill, an interplanetary gunslinger known as Star-Lord who assembles a team of aliens to do battle. His character’s wit and rebellious spirit has been compared to another planet-hopper, Han Solo.

You can make the comparison, that’s for sure,” Pratt said, acknowledging that like Star Wars, Guardians — set for release next summer — is “a big space opera.”

Saldana was more emphatic: “It’s an awesome comparison. Are you kidding me? Harrison Ford!”