Kevin Costners Western epic Horizon: An American Saga Chapter One premiered at the Cannes Film Festival on Sunday, and led to a teary Costner apologizing to the audience for them having to applaud for so long. The movie received a rapturous reaction from the room following its premiere, with its standing ovation lasting over 11 minutes, and the actor/director responding with a humbled show of thanks for both the audiences appreciation of the film and the creative team behind it.