'G.I. Joe: Retaliation's release date has been pushed back to 2013 in order to add 3D technology.

The action sequel - starring Channing Tatum, Bruce Willis and DWAYNE 'THE ROCK' JOHNSON - was originally scheduled to appear in cinemas on June 28, 2012 but Paramount Studios executives have decided to postpone the release so they can add the computer imagery.

A source told Deadline: ''We're going to do a conscientious 3D job because we've seen how it can better box office internationally. Jim Cameron did all of 'Titanic's 3D in post - and look how well that movie turned out.''

Director Jon Chu previously revealed he chose not to shoot in 3D because the studio didn't give him enough time to do it properly.

He told The Hollywood Reporter: ''There was a point where we were talking about it when I first came. It seemed like a natural thing, but I told them, 'I know 3D. This is what we need. If we're going to do 3D, we're going to do it right.' It had a certain price tag to it, and I was like, if you guys are down I'm down, but I do need more time to do it right.

''And they were about to do it but they cut it just a little bit short, and [I said,] 'if you guys are going to cut it short there is no point. Let's make a movie - let's go for it and we'll go all out.' And we shot on film, super-35, and I thought this may be one of the last times I get to shoot on film, and it was actually kind of freeing. I mean, I love 3D and I think there is a lot you can do with it, but there is something to be said about just not waiting for anything. You're just going. We shot so much film. I mean I think we shot 1.2 million feet of film.''