Hollywood is officially on strike – with stars leaving the Oppenheimer premiere in support (Picture: PA)

Hollywood is officially on strike after US union SAG-AFTRA voted unanimously to walk out, following weeks of unsuccessful negotiations.

Months after the Writer’s Guild of America began their strike, SAG members have now followed suit, with the strike due to begin at midnight PST.

The news comes shortly after the cast of Oppenheimer left the UK premiere early in solidarity.

According to Deadline, members will officially join picket lines at all the major studios – marking the first dual strike since 1960.

The decision came after negotiations with the Alliance of Motion Picture and Television Producers (AMPTP) – who represent studios including Disney, Warner Brothers and Netflix – failed to produce new contracts.

This is a breaking news story, more to follow soon… Check back shortly for further updates.

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They join the WGA move.