Halle Berry, who earlier this month topped the list of PEOPLE's 50 Most Beautiful People, did something not very attractive: She broke her arm.

The fracture occurred while filming a scene on the Montreal set of her upcoming film, "Gothika," but she is expected to be back before the cameras next week, a Warner Bros. spokesman tells Reuters.

The "Monster's Ball" Oscar winner, who's currently seen in "X2: X-Men United," plays a criminal psychologist in "Gothika." Her character wakes up one morning to find herself a patient in a mental institution.

"It's turning into something that's really gritty and really, really scary," Berry, 36, told TV's "Extra" earlier this month.

The film also stars Penelope Cruz, Robert Downey Jr. and "Lord of the Rings" actor Bernard Hill, some of whom were said to be on the set at the time of the injury.

"It wasn't a stunt scene, it was just one of the physical scenes in a movie," said Joe Everett of Warners. "Her arm didn't go the way it was supposed to."

An ambulance reportedly took Berry to a Montreal hospital, where she was treated for a broken ulna (the bone that extends from the elbow to the wrist) and released, said the rep.

Production of the movie, which is due to be released this November, has been shut down until Tuesday, says Reuters.