The film, "Bohemian Rhapsody" tells the story of the life of Freddie Mercury, what is the cause of his death?

Bohemian Rhapsody is a 2018 biographical musical drama film directed by Bryan Singer from a screenplay by Anthony McCarten, and produced by Graham King and Queen manager Jim Beach. The film tells the story of the life of Freddie Mercury, the lead singer of the British rock musical band Queen. The film stars Rami Malek as Mercury, with Lucy Boynton, Gwilym Lee, Ben Hardy, Joe Mazzello, Aidan Gillen, Tom Hollander, and Mike Myers in supporting roles.

The film was released in the United Kingdom on 24 October 2018 and in the United States on 2 November 2018. The film was well-received by audiences and became a major box office success, grossing over $911 million worldwide on a production budget of about $50 million, becoming the sixth-highest-grossing film of 2018 worldwide and setting the all-time box office records for the biopic and drama genres. Bohemian Rhapsody received numerous accolades, including a leading four wins at the 91st Academy Awards for Best Actor (Malek), Best Film Editing, Best Sound Editing and Best Sound Mixing; it was also nominated for Best Picture. The film also won Best Motion Picture – Drama at the 76th Golden Globe Awards, and was nominated for the Producers Guild of America Award for Best Theatrical Motion Picture and BAFTA Award for Best British Film, while Malek won the Golden Globe, Screen Actors Guild and BAFTA for Best Actor. The credits state that Freddie died in 1991 of AIDS-related pneumonia at 45.