Paramount Pictures has decided to hold back its lone summer blockbuster for nine months so they can convert the film to 3D.

G.I. Joe: Retaliation, which was due to open late next month, is now being held back until March 2013 while the film undergoes the tedious conversion, according to Deadline.com.

And doing it right is the main goal, as in the past 3D conversions haven't always worked out. 2010's Clash of the Titans was highly criticized over its poor use of the medium; while James Cameron's re-formatted re-release of Titanic was a huge box-office success.

"We're going to do a conscientious 3D job because we've seen how it can better box office internationally," a studio insider tells Deadline. "Jim Cameron did all of Titanic's 3D in post (production) - and look how well that movie turned out."

Channing Tatum, Bruce Willis, Dwayne "The Rock" Johnson and Adrianne Palicki star in the film.