Joaquin Phoenix’s supervillain returns with added Gaga, and one of Britain’s greatest modern artists exposes the brutal face of humanity

Joker: Folie à Deux
Out now
The first Joker film was one of the best recent efforts to make a genuinely compelling piece of cinema out of comic-book source material. The second Joker film aims to keep fans of the first one on their toes by throwing Lady Gaga, as Harley Quinn, into the mix for a bit of jailhouse rock – this instalment being a musical, set mainly in prison.