I'm not happy about this at all. One of the movies I was looking forward to seeing the summer was G.I. Joe: Retaliation. Word surfaced this morning that Paramount has decided to push the launch of G.I. Joe back from next month on June 29 to March 29, 2013. The official explanation is to tweak the movie for 3-D launch.
I think Paramount got scared because The Avengers is dominating the box office and the company didn't want to launch in Marvel's shadow. This is very disappointing and the movie has been the source of a big marketing campaign. You can't watch a movie at the theater without seeing an advertisement for the flick.