Writer-director Andrew Stanton caught up with MTV and discussed the progress of John Carter of Mars, based on the series of Edgar Rice Burroughs novels about a Civil War veteran who becomes a great hero on Mars.

"I'm not in post-production - I'm in digital principal photography now, which goes on for the rest of 2011, so I'm only halfway through the movie," Andrew Stanton explained.

"I didn't try to make it look like anything else. I really tried to make it its own thing. I tried to make a very historically accurate Martian film if that makes sense, so I'll let you decipher that."

The director said that John Carter of Mars is still slated for a 3-D release.