The filmmaker gave the Umbrella singer her first big acting break in 2012 and now they are working together on a new big screen project.

The documentary has been described as an "unfiltered look into Rihanna's life and how she's ascended to become a global icon", and is said to be "much more a character study than a music film", according to

Reports suggest Berg's inspiration will be 1967 Bob Dylan documentary Don't Look Back, which was directed by D. A. Pennebaker.

Rihanna is currently working on the follow-up to her 2012 album Unapologetic, with Kanye West as executive producer.

The frequent collaborators are also rumoured to be planning a joint summer (15) tour.