Nearly six months after producer Lauren Shuler Donner revealed that Channing Tatum will play Gambit in a new X-Men spin-off movie, the project is officially moving forward with Channing Tatum officially signed to star and Joshua Zetumer (RoboCop) writing the screenplay.The script will be based on a treatment written by Marvel comics writer Chris Claremont, who created the character alongside Jim Lee in 1990, with story details being kept under wraps.