Stars hit the red carpet on Monday, September 8 for the Los Angeles premiere of One Battle After Another. Source: PATRICK T. FALLON / Getty During the world premiere of writer-director Paul Thomas Anderson's dark comed/thriller, Hollywood Boulevard was open for moving traffic, according to reports from USA Today. Ahead of the film's opening on Sept. 26, fans were ecstatic to catch a glimpse of Leonardo DiCaprio, who dove across the street to greet hundreds of cheering fans outside the TCL Chinese Theatre.