Cillian Murphy, Emily Blunt and Matt Damon were among the stars who staged a walk-out from the London premiere of Oppenheimer to "write their picket signs" ahead of the Screen Actors Guild and the American Federation of Television and Radio Artists' (SAG-AFTRA) strike announcement on Thursday evening.
The premiere of Christopher Nolan's historical epic was brought forward by an hour ahead of a SAG-AFTRA press conference in Los Angeles, which later declared the US union had agreed to strike.
The anticipated announcement cast a shadow over the London film premiere in Leicester Square, with the film's other stars including Florence Pugh, Robert Downey Jr, Kenneth Branagh and Rami Malek leaving before the screening of the film.
Speaking on stage at the premiere ahead of the strike announcement, filmmaker Nolan said: "I have to acknowledge the work of our incredible cast, led by Cillian Murphy.
"The list is enormous - Robert Downey Jr, Matt Damon, Emily Blunt, Florence Pugh, Kenneth Branagh, Rami Malek and so many more. You've seen them here earlier on the red carpet.
"Unfortunately, they are off to write their picket signs for what we believe to be an imminent strike by SAG, joining one of my guilds, the Writers Guild, in the struggle for fair wages for working members of their union."
The strike news comes after the US union and Hollywood studios failed to reach an agreement after more than four weeks of negotiations, with actors wanting better pay and increased safeguarding around AI rights among their demands.
It is now anticipated the strike will affect upcoming award shows, premieres, events and film festivals around the world, including the Toronto and Venice film festivals, and the 75th Emmys.
Oppenheimer opens in Ireland on Friday 21 July.
Source: Press Association
