Emily Blunt, Gideon's Daughter,The Devil Wears Prada

In 2005, Emily Blunt co-starred with Bill Nighy and Miranda Richardson in the British TV drama Gideon's Daughter, an original screenplay written and directed by Stephen Poliakoff, in which she played the troubled only child of New Labour spin doctor Gideon Warner, played by Nighy. Emily Blunt won a Golden Globe for her performance.

In 2006, Emily Blunt appeared opposite Meryl Streep and Anne Hathaway in the box-office success The Devil Wears Prada. Meryl Streep and Anne Hathaway received most of the critical attention initially, but Emily Blunt proved to be equally memorable with Entertainment Weekly naming her the Best Female Scene-Stealer in their end-of-summer special issue.

Emily Blunt appeared at the 79th Academy Awards where she co-presented the award for best costume design with her Prada co-star Hathaway.

In an interview with Us Weekly, Anne Hathaway said “I basically stuck with fruit, vegetables and fish (to slim down for the movie). I wouldn't recommend that. Emily Blunt and I would clutch at each other and cry because we were so hungry." Emly Blunt also spoke about the weight loss, claiming she had to go "painfully thin".