Rihanna Excited About Filming New Movie.

Singer Rihanna says she is "really enjoying" shooting for her debut sci-fi film Battleship, but claims her co-star Aleksander Skarsgard is "not very talkative".

"It's really good, really good. I'm really enjoying it actually. I like it,"

says RiRi.

"Aleksander is really cool, just laid-back. He doesn't get in the way. He's not very talkative, but he's a really cool guy and that's to everybody - not just the cast."

Actors Liam Neeson and Brooklyn Decker also play important roles in the film, which is being directed by Peter Berg. The movie follows a group of naval ships fighting off an alien invasion looking for something beneath the Earth's oceans.

Battleship is due to hit cinemas in May 2012.