18 Movie Stalkers You Should Not F*ck With

Apparently no one ever warned Ali Larter not to mess with Beyoncé, because that's exactly what she does in Obsessed. Lisa (Larter) goes after husband of Beyoncé's character, played by Idris Elba, in this sexy thriller. You would think Elba would be able to handle a handsy stalker, but Beyoncé has to take matters into her own hands, resulting in one hell of a fight sequence.