She'll voice Wonder Woman in the Lego Movie.

Source: ComingSoon.net

Well, it's not a live action movie, but it's a start. Wonder Woman will finally make her feature length big screen debut in the upcoming Lego Movie. She'll be voiced by Cobie Smulders (How I Met Your Mother, Avengers). Other Justice League members to appear in the film will be Superman (voiced by Channing Tatum), Batman (Will Arnett) and Green Lantern (Jonah Hill).

No word on how extensive any of these roles will be, but the movie will premiere on February 7, 2014.