Chris Columbus was previously attached to direct the big screen adaptation of Marvel Comic’s "Sub-Mariner," but Variety writes that the job has gone to "Terminator 3" helmer Jonathan Mostow. Besides directing the film, he will be rewriting the script as well.
Originally created in 1939 by Bill Everett, Namor, the title character in "Sub-Mariner," hails from the underwater kingdom of Atlantis and possesses superhuman strength. He aims to protect his underwater kingdom from all harm including those caused by the land dwellers. The movie probably won’t stray far from that central premise.