Hollywood actresses Blake Lively and Scarlett Johansson are competing for the lead role in the new sci-fi movie
, which tells the tale of a female astronaut who gets lost in space,
It had been thought Johansson had “verbally agreed” to star opposite her
Iron Man 2
co-star Robert Downey Jr but Lively is now being considered for the part. The film, which is being directed by Alfonso Cuaron, is being dubbed a contemporary survival thriller.