Rihanna is taking her acting debut pretty seriously. In the clip above, which Rihanna released on her YouTube channel, we get a behind-the-scenes peek at her getting into character for her role as Raikes in the upcoming action flick Battleship

To get in touch with her inner naval officer for the boardgame turned big-screen venture, Rihanna works with Jacqueline Carrizosa, a real-life naval officer and, according to Rihanna, "a bad-ass chick" who teaches her how to handle a weapon, and use naval lingo and salute like she's a real deal weapons specialist.

Judging from Rihanna's tough girl swagger and the way she convincingly screams, "Who's in charge? WHO'S IN CHARGE?", we think the training sesh went pretty well.

[via YouTube]