Bullock to replace Portman in ‘Gravity’?

LONDON - Actress Sandra Bullock is reportedly set to join Robert Downey, Jr. in the sci-fi thriller Gravity.

Natalie Portman had been linked to the role, but was forced to pull out due to date problems.

Angelina Jolie had originally committed to work in the upcoming $ 84 million 3D movie, reports dailystar.co.uk.

To be directed by Alfonso Cuaron, the film will revolve around two astronauts fighting to survive on a remote space station.