Which actor played Beyoncé’s romantic co-star in the film Obsessed?

Idris Elba played Beyoncé’s romantic co-star in the 2009 film Obsessed. Elba portrayed Derek Charles, a successful financial adviser whose marriage is threatened by an employee’s fixation on him.

Beyoncé played Sharon Charles, Derek’s wife, in the psychological thriller directed by Steve Shill. Ali Larter played Lisa Sheridan, the co-worker whose obsessive behavior drives the central conflict. The cast also included Jerry O’Connell, Christine Lahti, and Scout Taylor-Compton.

Obsessed was Beyoncé’s first leading film role after major appearances in Austin Powers in Goldmember, The Fighting Temptations, Dreamgirls, and Cadillac Records. It differed from her musical and biographical roles by placing her in a contemporary domestic thriller. The film was released in April 2009 and performed strongly at the North American box office despite mixed reviews.