I didn't really learn a lot about Miles Davis from this movie, apart from the fact that he was a drug taking musician who was not particularly nice to the people close to him. Don Cheadle plays the part very well, the same cannot be said for Ewan McGregor, who is miscast as the Rolling Stone reported who wants Davis's comeback story. Emayatzy Corinealdi plays Frances, Miles's suffering wife, a talented dancer who is forced to quit her profession by Davis so she can 'be with him'. I was quite enjoying the movie but it all turned a bit slapstick and stupid when the tape went missing. It's not really a biopic and you are not even treated to that much music, so all in all it's just an average watch for me.