Lily James gets fashion advice from Matt Smith.

She said: "He's got great taste so I run things by him. He's got a good fashion eye."

The 27-year-old beauty spends a lot of time away from her actor boyfriend because of their hectic work commitments, but things are good between them.

She said: "We make it work."

And now Lily - who is the new face of Burberry's My Burberry Black fragrance - is looking forward to taking a few months off once her run in Kenneth Brannagh's stage production of 'Romeo and Juliet' comes to an end.

She said: "I need some time just to take stock and chill out. I am really proud of where I've got to.

"I've got people like Kenneth and Burberry behind me, which makes me feel very lucky and supported."

While she's proud of her achievements, the former 'Downton Abbey' star won't take her success for granted.

She said: "Everything is changeable. No matter how well I do, nothing will last forever and I'll never feel secure."

Lily faced a backlash over her skinny waist when she starred in the movie adaptation of 'Cinderella' but has slammed the criticism as "sexist" as guys don't face the same negativity when they slim down or bulk up.

She told Grazia magazine: "It was the design of the dress, which was beautiful. I felt so frustrated.

"It was so sexist, when men bulk up or get really fit for a film, that's fine.

"But people make decisions about your body which have no relation to reality. We have to be careful about that."