The Academy Award-nominated documentary explores the lives of talented backup singers, who made careers performing behind legends of the music industry. The documentary shows the highs and lows, including stories of performers whose shot at stardom was always kept just out of reach.
Morgan Neville directed the film that features commentary by Jagger.
A proposed Broadway production would feature some of the actual performers who appear in the documentary, including Darlene Love (Hairspray) and Lisa Fischer.
A television adaptation would focus on contemporary performers.
Jagger and Victoria Pearman would executive produce along with Neville.