She told the Daily Telegraph: "I was properly unemployed for 10 months - temping in an office again to pay for Christmas presents. That was the best lesson I've ever learnt: you're never home and dry."
These days Natalie has the luxury of picking movies that will challenge her, instead of having to fight for every role.
She explained: "I try to look for the thing that is going to challenge me next, for the thing that takes me out of my comfort zone - the thing I'm not quite sure whether I'm going to be able to do or not."
Natalie co-wrote her new movie 'In Darkness' with her fiancé, director Anthony Byrne and loved the experience of working on a film from scratch.
She said: "I've learnt so much about the mechanics of how a film is made. To see and appreciate that you're a cog in a wheel of a much bigger thing happening in front of and behind the camera is a healthy thing for an actor. Now I'm just dying to get on set and tell the story. It's scary because we don't have a lot of time. But nothing worth doing isn't scary, right?"