Angelina Jolie has turned down offers to star in the 3D film Gravity, according to reports.

Warner Bros, which has also approached actresses Sandra Bullock, Natalie Portman, Carey Mulligan, Sienna Miller, Scarlett Johansson and Naomi Watts, put in two offers to Salt star Angelina, said Deadline.

Robert Downey Jr is already attached to play a team leader stuck in outer space in the sci-fi adventure, directed by Alfonso Cuaron, who is expected to start filming in 2011.

Angelina, who next appears in The Tourist with Johnny Depp, would have played the team leader’s female colleague, who is desperate to return home to her child.

The Hollywood star is set to make her directorial debut this autumn with a love story that takes place in 1990s Bosnia, and has written the script for the film.

She is said to be considering new projects such as collaborating with Tim Burton on Maleficent, playing the title role in Cleopatra and portraying top medical examiner Kay Scarpetta in the big-screen adaptation of Patricia Cornwell’s best-selling novels.