Some measure it by its box office, but for me, the true impact of a film can be as simple as a memorable line or a searing performance.

Over the decades, so many actors and supporting roles gave us moments we will never forget.

I am in awe of Louis Gossett Jr.'s Sergeant Foley in An Officer and a Gentleman.

Joel Grey's playfully menacing Wilkerman in Cabaret.

Denzel's heartbreaking performance in Glory.

The five men nominated this year as Best Supporting Actor have all made a significant impact with vivid moments that will linger for many years to come.

Here are the nominees for Performance by an Actor in a Supporting Role.

Tom Hanks, A Beautiful Day in the Neighborhood.

Anthony Hopkins, The Two Popes.

Al Pacino, The Irishman.

Joe Pesci, The Irishman.

Brad Pitt, Once Upon a Time in Hollywood.

And the Oscar goes to Brad Pitt, Once Upon a Time in Hollywood.

This is the second Oscar for Brad Pitt, his first for acting.

Wow.

Thank you, this is incredible, really incredible.

Thank you to the Academy for this honor of honors.

They told me I only have 45 seconds up here, which is 45 seconds, 45 seconds up here, which is 45 seconds more than the Senate gave John Bolton this week.

I'm thinking maybe Quentin does a movie about it, in the end, the adults do the right thing.

This really is about Quentin Jerome Tarantino.

You are original, you are one of a kind.

The film industry would be a much drier place without you, and I love the ethos you gave Cliff Booth.

Look for the best in people, expect the worst, but look for the best.

Leo, I'll ride on your coattails any day, man.

The view's fantastic.

And to the rest of the cast and crew, big bad Bob Richardson,

Robert Garcia, Richie, my man Mike Moe, and you know, I also wanna say, you know, while we're doing all this,

I think it's time we give a little love to our stunt coordinators and our stunt crews.

Listen, I'm a bit gobsmacked.

I'm not one to look back, but this has made me do so, and I think of my folks taking me to the drive-in to see Butch and Sundance, and loading up my car and moving out here, and Gina and Ridley giving me my first shot to all the wonderful people I've met along the way to stand here now.

Once upon a time in Hollywood.

I think that's the truth.

This is for my kids who color everything I do.

I adore you.

Thank you.