Harry Styles and Lily James in discussions to star in film adaptation of 'My Policeman'.

Deadline are reporting that Harry Styles and Lily James are in negotiations to star in the upcoming Amazon Studios film based on the LGBTQ-themed novel 'My Policeman', produced by Greg Berlanti ('Love, Simon').

The story is described as: "Story takes place in the late 1990s, when the arrival of elderly invalid Patrick into Marion and Tom’s home, triggers the exploration of seismic events from 40 years previous: the passionate relationship between Tom and Patrick at a time when homosexuality was illegal."

Production on the film is set to start next summer, and the negotiation news comes after Styles has been announced as joining Olivia Wilde's upcoming thriller 'Don't Worry Darling' opposite Florence Pugh.

It seems Styles has been researching the role for a while, and was photographed earlier this year with the book in his pocket: