Inside THR's Nominees Night Party With Bradley Cooper, Michael Keaton and More

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Marion Cotillard and Michael Keaton; below, Bradley Cooper

Laura Dern, Robert Duvall, Marion Cotillard, Patricia Arquette and Common were among those who turned out for the glitzy bash Monday night at Spago.

Michael Keaton, Bradley Cooper, America Ferrera, Laura Dern, Robert Duvall, DreamWorks Animation's Jeffrey Katzenberg and Focus Features' Peter Schlessel were among those who descended upon Spago in Beverly Hills on Monday night for The Hollywood Reporter's annual Nominees Night party.

Marion Cotillard, Richard Linklater, Patricia Arquette and Common also joined numerous A-listers at the glitzy affair held in honor of the actors, filmmakers and other nominees who will be celebrated at the Oscars on Feb. 22. Also mingling at the party were American Sniper producer Andrew Lazar; The Imitation Game writer Graham Moore; The Theory of Everything writer Anthony McCarten; Birdman co-writer Alexander Dinelaris Jr.; Eric Beckman, president of GKids, which boasts two best animated film noms this year (Song of the Sea and The Tale of Princess Kaguya); Citizenfour director Laura Poitras; best original song nominee Diane WarrenIda director Pawel Pawlikowski; Last Days of Vietnam director Rory Kennedy and Wild Tales director Damián Szifrón. (See more photos here.)

The Oscar nominees came together earlier on Monday for the Academy's official luncheon and ended the night celebrating with THR. "It's all been fun. I'm so grateful for everything that has happened. That luncheon today was really classic," Keaton said. "Bradley [Cooper] and I were talking about it. ... Who does this happen to? How lucky am I?"

When asked why she supports her fellow nominees, best actress nominee Patricia Arquette, who donned a black Elie Tahari dress, answered: "I've been in this business a very long time, I've worked with a lot of people and I really appreciate that I've had a good career. To work with someone like Richard Linklater, it changes the way we do film. … It shows other companies, 'Hey, people do want to see movies that you don't think they would. People are interested in other human beings.' "

Boyhood's Ellar Coltrane, a newcomer to awards season, expressed the importance of soaking it all in: "That's the message of our movie, isn't it? Enjoy those moments."

Rachel Zoe, Jay Duplass, Selma director Ava DuVernay, How to Train Your Dragon 2's Bonnie Arnold and Dean DeBlois, The Theory of Everything composer Johann Johannsson and attorney Ken Ziffren also walked the plum-colored carpet at the soiree.

Elsewhere, Breaking Bad's Betsy Brandt was among those letting loose on the dance floor to tunes spun by DJ Kiss, while Cotillard was overheard telling Keaton that Birdman was one of her favorite movies of the year.

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At the bash, presented by Cadillac and sponsored by Delta Air Lines, Roberto Coin, Neiman Marcus and Gillette, Delta ran an Oscar trivia game, enticing revelers to play for two round-trip business elite tickets to London. Neiman Marcus presented a Tom Ford makeup station available to attendees before participating in their photo booth. Coin displayed jewelry around the venue, while Gillette sent partygoers home with a gift.

Attendees were served an assortment of hors d'oeuvres and desserts, including tuna tartar sesame seed cones, hamburger sliders, maple syrup/bacon macaroons, éclairs and chocolate pudding in golden eggs, along with a selection of signature cocktails including a vodka and pomegranate "Show Me Love" and cucumber tequila "Pepino's Revenge."

"Here's a glass of highly expensive water to congratulate you guys," Piers Morgan toasted on the carpet. "I love The Hollywood Reporter."