Brad Pitt is in negotiations to star in Angelina Jolie's next movie.

The 51-year-old actor has recently completed work on 'By the Sea', his 39-year-old wife's third directorial effort, and is now looking to land a part in her fourth film 'Africa', The Wrap reports.

'Africa' is a true story about paleoanthropologist Richard Leakey and his battle with the ivory poachers who threatened the African elephant population in the 1980s and Angelina - who raises six children with Brad - is working from a script written by Eric Roth.

The brunette beauty has previously said: ''I've felt a deep connection to Africa and its culture for much of my life, and was taken with Eric's beautiful script about a man drawn into the violent conflict with elephant poachers who emerged with a deeper understanding of man's footprint and a profound sense of responsibility for the world around him.''

Angelina - who met Brad on the set of their 2005 movie 'Mr and Mrs Smith' - previously said working with her spouse on 'By the Sea' brought them ''closer''.

She added: ''Sharing something in a deep artistic way, it's something I think is necessary for artistic couples. I hadn't realised how good it would be for us.''