Orbital Projection

Natalie Portman was at one time "in active negotiations" to join Alfonso Cuaron's sci-fi epic Gravity. And then she was not...Well now she just might star in the film after all--reports Heat Vision.

Set during an orbital repair mission, the story follows a female astronaut who must survive a solitary ordeal after an exploded satellite wipes out the rest of the crew.

Robert Downey Jr also stars.

Cuaron will direct and co-wrote the script with his son Jonás

The lead role has been highly sought after as it's a high-profile role that dominates the screen for much of it (similar to "Cast Away" with Tom Hanks.).

Angelina Jolie has been linked but ultimately dropped out of the pic.

Stay Tuned to see if Nat goes into space...

In related news, Cuaron Jr has sold an untitled Mexico City-set gritty thriller pitch.