The Sandra Bullock space pic Gravity 3D had been scheduled for November 21, but now it will premiere sometime in 2013. Warner Bros already has a full plate in the fourth quarter — Argo, Gangster Squad, The Hobbit and The Great Gatsby among its titles — so it’s possible the studio wanted to give the Alfonso Cuaron drama some extra breathing room, especially since it will need IMAX’s 3D screens, which are in short supply.