Noomi Rapace not worried about Prometheus Alien comparison

Noomi Rapace isn't worried about her 'Prometheus' character being compared to Sigourney Weaver's Ripley in 'Alien'.

The Swedish actress has signed up to star in the sci-fi spinoff of the 1979 extraterrestrial movie as scientist Elizabeth Shaw - but insists although there are "some similarities" between the two characters, audiences won't compare her to Sigourney's tough female protagonist as much as expected.

She said: "She's definitely her own [character]. She's a scientist and is very bright. She's a believer.

"I think there are some similarities, but she's very much her own. I don't think people will compare her so much to Ripley once they see the movie."

Noomi, 31, who will star alongside Charlize Theron in the thriller, also revealed she has talked in detail about her new role with the film's director Ridley Scott, who also directed 'Alien'.

She told MTV.com: "It's a great honour and I'm really excited. I've met him maybe seven or eight times and he's so passionate. "We had a long chat on the phone - he's in LA now - about my character. I have many ideas and he has many ideas, and now we're starting to search and try to find her."

The film will start shooting this month.