IMAX Corporation has scored its first $100m global hit as sources confirmed Avatar had grossed more than $101.3m since the film launched one month ago.

James Cameron’s sci-fi adventure has amassed more than $33.3m overseas and $68m in North America, easily outstripping The Polar Express’ old $71m mark to become the biggest worldwide hit yet on the large screen format.

Averaging roughly $3m worldwide, Avatar is understood to have crossed $100m mark early on Thursday morning [January 14].

Meanwhile IMAX Corporation, Marvel and Paramount announced they had signed a deal to release Iron Man 2 on May 7.

Iron Man 2 is a fantastic addition to our growing film slate for 2010, which is filling out faster than any previous year,” IMAX CEO Richard L Gelfond said. “The roll-out of our digital projection system has enabled us to add more films to the slate, and we’re very excited to partner with Marvel and Paramount on this next instalment of the incredible Iron Man franchise.”

“The success of the first Iron Man movie catapulted the franchise from the comic books to theatre screens, and we’re excited that the IMAX format will offer fans an even more immersive way to experience the sequel,” Marvel Studios COO Tim Connors said.

IMAX’s 2010 slate includes Alice In Wonderland and IMAX Hubble 3D.