Blunt's secret binges on Prada set

Emily Blunt risked the wrath of producers of 'The Devil Wears Prada' by smuggling doughnuts onto the set of the movie - because she was meant to be on a strict diet for her role.

The 25-year-old portrayed a stick-thin fashion assistant in the 2006 hit, meaning Blunt had to forgo all sweet treats to slim down.