(Cover) - EN Movies - Rihanna has become a self-confessed film critic since making her big screen debut.
The star plays weapons specialist Petty Officer Raikes in the new action film Battleship.
Working on a movie has made Rihanna more critical when she is watching films at home and she can't help having an opinion.
"I've always loved watching movies, but now that I'm actually learning about acting, it drives me nuts!" she told British magazine We Love Pop. "I can't even watch a movie now without observing everything, hating what I see, now that I know it. I look at it in a completely different way. I can't just 'watch' a film. I can tell now when it's bad."
In Battleship, a fleet of ships are forced to fight against an unknown enemy and the film also stars Liam Neeson and Alexander Skarsgard.
Although Rihanna is used to being in front of a camera after starring in a host of music videos, she still felt nervous about her first movie role.
The star insists it was a challenge to get into character for Battleship and put on a convincing performance.
"Not at all, it's way different. Shooting music videos, I'm Rihanna, and that's easy," she added. "It's easy for me to be Rihanna! I kind of had to get rid of all things Rihanna to play Raikes."