"The Game Plan" is set up at Disney and has been on hold since June, when Johnson ruptured his Achilles tendon.
Johnson will play a football player who attempts to bond with his newly discovered daughter (Madison Pettis). Sedgwick will appear as the player's ruthless sports agent who doesn't care about the kid, at least according to The Hollywood Reporter.
Sedgwick has earned Emmy and Golden Globe nominations for her turn as master interrogator Brenda Johnson in "The Closer." Her film credits include "The Woodsman" (opposite husband Kevin Bacon), "Phenomenon" and "Something to Talk About."