Emily Blunt says she's keen to "keep mixing it up" when it comes to her film roles.

The actress stars in new indie flick Your Sister's Sister, as well as the bigger budget Jason Segel romcom The Five-Year Engagement.

She revealed: "I like the variety out there. Your Sister's Sister was made for no money and I think those experiences are really valuable - the collaboration and the sort of element of, who knows how this will turn out?

"I love that about the industry. I just don't think you can strategise the jobs that you do. It's so subjective - I might love a script that some other actress wouldn't like."

She added: "I think you've got to pick what you love."

:: The Five-Year Engagement is in cinemas on Friday June 22.