Carey Mulligan had nowhere to live while she was shooting Drive in Los Angeles so she moved in with the film's director, Nicolas Winding Refn.
The Oscar-nominee plays a woman who falls in love with a Hollywood stunt performer moonlighting as a getaway driver, played by Ryan Gosling, in the new movie.
Mulligan found herself homeless as shooting was about to start and she was rumoured to have taken up residence in a downmarket hotel following her split from boyfriend Shia LaBeouf, but she has now revealed Refn offered her a place to stay.
She tells BBC Breakfast, "I moved in with Nick because I didn't have anywhere to live in L.A... so when I wasn't working we hung out..."
Mulligan also revealed Drive was the first role she took after nearly a year without work - as she struggled to find any interesting projects to tackle.
She adds, "I hadn't worked in about a year. I was just looking for something to do that was exciting. I think a lot of the stuff I was reading was stuff that was similar to parts I had already played... I was looking for something I was a bit nervous about doing."