The cast of 'Oppenheimer' walked out of the film's London premiere in solidarity with the actors' strike. Extending his support, Matt Damon said, "No one wants a work stoppage, but we've got to get a fair deal." "Obviously we stand with...the...actors...We're going to be...standing together through it," said Emily Blunt. "We're...in complete solidarity with our colleagues," Kenneth Branagh stated.