Cast member Kristen Stewart poses on the red carpet as she leaves after the screening of the film "Sils Maria" (Clouds of Sils Maria) in competition at the 67th Cannes Film Festival in Cannes May 23, 2014. [Photo/Agencies]

No. 5: Kristen Stewart

Reason: Was there such thing as legitimate cheating?!

The Twilight heroine always looks as if she hasn't shampooed in ages and the world owes her a million dollars. Her fling with Rupert Sanderson broke Robert Pattinson's heart and won her more "haters", but did buy her some tabloid headlines. Instead of apologizing, her first response was she was "tricked" into the affair. Rumors has it Stewart is seeing Nicolas Walter, who is dating Jennifer Lawrence. Maybe Belle is only loyal on the screen.

Sandra Bullock tops Forbes list as Hollywood's top-earning actress	Celebrities who have suffered from depression