Brad Pitt was unequivocal that he had no apprehension about sharing the screen with another big name actor like Leonardo DiCaprio, whom he had never worked with before (though they did appear on Growing Pains at separate times). Rather than looking at a film like Once Upon a Time in Hollywood, with multiple A-listers, as a delicate situation where everyone is jockeying for position, he instead looked at it as a situation where the amount of talent made things easier overall.