The Horrible Bosses star has been left hobbling around with the injury as she promotes her new comedy We're The Millers and she admits it's all because of her future husband's penchant for biker boots.
She tells Eonline.com, "I have a broken toe. Not to out my sweet, sweet fiance but he has big feet and wears these boots. He stepped on my toe. Broke it. I felt it."
The couple became engaged last year (12).