Play Mars Needs Moms Low Gravity Leap on: disney.com Become a fan on Facebook: facebook.com “Mars Needs Moms” hits theaters in 3D, 2D and IMAX 3D March 11, 2011. Take out the trash, eat your broccoli — who needs moms, anyway? In “Mars Needs Moms” nine-year-old Milo finds out just how much he needs his mom (Joan Cusack) when she’s nabbed by Martians who plan to steal her mom-ness for their own young. Milo embarks on a quest to save his mom — a wild adventure that involves stowing away on a spaceship, navigating an elaborate, multi-level planet and taking on the alien nation and their leader. With the help of a tech-savvy, underground earthman named Gribble (Dan Fogler) and a rebel Martian girl called Ki (Elisabeth Harnois), Milo just might find his way back to his mom — in more ways than one.