She's not your average trainer, though we bet she'd make one bad-ass boot camp instructor.
Jacqueline Carrizosa is a former Navy gunner's mate and search and rescue swimmer. She's the one who helped Rihanna look totally legit shooting the big guns in Battleship.
"She was the first famous person I ever met," says Jacqueline of her headline-magnet student. "I didn't know what to expect. [She made me realize] that everyone can be cool."
The pair became fast friends, bonding over music during downtime on the set. Jacqueline gave her protege high marks as a fast learner: "She asked a lot of questions to understand better. She was pretty much like a sponge."
What did Jacqueline think of the final product? "I was super stoked watching it!" she says.
Check out the practical joke Rihanna played on Taylor Kitsch on the set.
Why Jay-Z Won't Be Best Man at Kanye West's Wedding to Kim Kardashian