“Oppenheimer” won the top film prize at the Producers Guild of America (PGA) Awards on Sunday night, keeping up its winning streak ahead of next month’s Oscars.

The three-hour epic, which takes audiences back to the making of the atomic bomb during World War Two, scooped the Darryl F Zanuck Award for Outstanding Producer of Theatrical Motion Pictures, a day after its cast won prizes at Hollywood’s Screen Actors Guild (SAG) Awards.

The film stars Cillian Murphy as American theoretical physicist J Robert Oppenheimer.

Murphy won best actor in a leading role at the SAG Awards and his co-star Robert Downey Jr. took the best supporting actor title. The film, directed by Briton Christopher Nolan, also took those awards’ top honour – best cast in a motion picture.

Among its other awards, “Oppenheimer” won best film at the BAFTA Film Awards in London earlier this month and best motion picture – drama at the Golden Globes in January.

Other winners at Sunday’s PGA Awards, held in Hollywood, included “Spider-Man: Across the Spider-Verse”, documentary “American Symphony” and television shows “The Bear”, “Succession” and “Beef”.

Veteran filmmaker Martin Scorsese was also honoured with the David O. Selznick Achievement Award.