The report of Singer's firing arrives just days after 20th Century Fox announced that it had halted production on the film due to Singer's "unexpected unavailability". His no-shows resulted in cinematographer Thomas Newton Sigel having to step in to helm some of the days while Singer was missing.
The movie's star, Rami Malek, reportedly clashed with Singer over being unprofessional.
Malek, who's made a name for himself as the star of the hit United States of America series Mr. Robot, complained to Twentieth Century Fox about Singer's behavior.
Tensions have grown on set between the director and star Rami Malek, who is playing Freddie Mercury, over Singer's absence. The two soon patched things up and planned to continue working together, though Singer never returned to set following the holiday break. A Directors Guild of America representative was apparently on set as well, appointed to "monitor the situation" and ensure that Singer would not act out.
Neither Singer or Malek have commented publicly on the move at this time.
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This was the last straw for the studio heads, who opted to terminate him under his pay-or-play contract.
One source states that Singer claims he is "suffering from post-traumatic stress disorder" due to the animosity and tension on the Bohemian Rhapsody set.
Despite all of these problems, Singer had still been given another opportunity to return to set and finish the film, which has two weeks of principal photography left.
Bohemian Rhapsody is slated for US release December 25, 2018.