James Franco has written a book about Lana Del Rey.

The 37-year-old actor has co-authored a 100-page tome with writer David Shields called 'Flip-Side: Real And Imaginary Conversations With Lana Del Rey'.

It will be released in March 2016 and James previously revealed Lana, 30, didn't want to sit down for an interview with him, even though the pair are close friends.

He said: ''I wanted to interview Lana for a book and she said, 'Just write around me, it's better if it's not my own words. It's almost better if you don't get me exactly, but try.' ''

James has also spoken in the past of how ''enamoured'' he is with the singer.

He said: ''There's a weird thing with creative types. Sometimes I love a person's work and, like, I'm just so enamoured with that and their persona in their work. But outside of that, it's like, our dynamic is we're just kind of friends, we get along so well. But all this sexual attraction is for the person and the work.''

This isn't the first time James has written about Lana, he also penned an essay about his love for the 'Born to Die' singer - who he says ''isn't made for the Earth'' - and revealed they have discussed collaborating on a cinematic project.

He wrote: ''She has this idea for a film. I want to do it because it's a little like Sunset Boulevard. A woman is alone in a big house in L.A. She doesn't want to go out. She starts to go crazy, and becomes paranoid because she feels like people are watching her. Even in her own house. It's like an awesome B-movie that lives in Lana's head. It's about her, and it's not about her. Just like her music.''