The film looks like it was intended as a stage play. It portrays Bacon's life in an unremitting darkness and ignores the past which is very important to understanding Bacon as a person as shown in documentaries about him. The Francis Bacon Estate refused permission to show Bacon's paintings on film. A Radio 4 documentary described the aggression of Dyer to Bacon towards the end of the relationship and that Bacon had to stay with friends away from his home where Dyer was. None of that is explored in the film instead its presented as all Bacon's fault as a cold, callous towards George Dyer. Biographies including Tom Baker's who drank with Bacon show's that he had a sense of humour and warmth that the film doesn't present. The director prefers Bacon as the remorseless dark figure which is suited better to a theatre. Film's ability is the presentation of a grimy, depressing London of the 60's.
