(Cover) - EN Showbiz - Justin Timberlake is joining forces with fiance Jessica Biel on her new film, according to TheWrap.

The Sexy Back star will compose music for the actress's latest movie project, The Devil and the Deep Blue Sea and will also serve as the music supervisor on the soundtrack.

Justin has been focusing on his movie career of late and it will be the first time he has released new music since his collaboration with Timbaland three years ago. His last album was 2006's Future Sex/Love Sounds.

The production of the movie is set to start later this year and is about a widower, played by Jeffrey Dean Morgan, who is grieving over the loss of his wife, portrayed by Jessica.

Jeffrey helps a 15-year-old girl (Chloe Grace Moretz) to build a raft to sail across the Atlantic Ocean.

Jessica will also produce the film with her Iron Ocean Films partner Michelle Purple.

Jessica and Justin got engaged last December and are apparently in full swing with planning their nuptials. (C) Cover Media