Natalie Portman is all in smiles during "Love and Other Impossible Pursuits" at the Toronto Film Festival, September 16, 2009. (Alex Urosevic, QMI Agency)

Natalie Portman has been offered the chance to replace Angelina Jolie in space survival movie Gravity alongside Robert Downey Jr.

The Tomb Raider star recently pulled out of the upcoming $80 million 3D movie and reports suggest producers are now eyeing Portman after previously considering Blake Lively and Scarlett Johansson for the coveted role.

If Portman signs on, she will play a woman stranded on a space station after a crash kills the rest of her crew.

Downey, Jr. has committed to a supporting role, according to the Hollywood Reporter.

Gravity is scheduled to begin shooting in January, before the Iron Man actor is scheduled to film other projects.