The nine-year-old star of the Oscar-nominated film "Room" stole the show Sunday night at the Critics' Choice Awards in Los Angeles.

Jacob Tremblay had to stand on a box as he accepted the Best Young Actor/Actress award for his role opposite Brie Larson in the film.

"Room" is about a mother and her five-year-old son who have been held captive in a small room for years  by a man called Old Nick.

Dressed in a dark suit, Tremblay said: "This is super cool, this is the best day of my life. I first want to say thank you to all the critics who voted for me, it must have been super hard because of all the great actors in this category."

The "Star Wars" fan added: "I know where to put this, on the shelf right next to my Millennium Falcon."

"Mad Max: Fury Road" was the big winner on a night where film and TV critics honored the best work on the big and small screen.

The reboot of the dystopian action film scored nine gongs, including Best Action Movie, a best actor in an action movie prize for Tom Hardy and a best actress in an action movie award for Charlize Theron.

George Miller, who is responsible for the series, was named best director, while the film also took prizes for visual effects, hair and makeup, costume design, editing and production design.

"Spotlight", about the Boston Globe reporters who uncovered sexual abuse in the Catholic church, was named Best Picture. The cast, which includes Michael Keaton, Rachel McAdams and Mark Ruffalo, also won Best Ensemble.

McAdams, nominated for a Best Supporting Actress Academy Award for her portrayal of Globe journalist Sacha Pfeiffer, collected the award, saying: "It is a little overwhelming to speak on behalf of our enormously-talented cast I had the privilege of working with.

"I think we can all agree the true star ensemble is the real life heroes at Spotlight and the rest of the team, thank you for having the bravery to pursue this important story."

Leonardo DiCaprio, who was also not present at the ceremony, was named Best Actor for "The Revenant."

"Rocky" star Sylvester Stallone continued his winning streak with a best supporting actor accolade.

The 69-year-old actor, who recently won a Golden Globe for reprising his role of Rocky Balboa in "Creed," is also up for a Best Supporting Actor Oscar.

Collecting his award on stage at the Barker Hangar in Santa Monica, Stallone said: "I guess there is at least one upside to getting older.

"I am truly amazed, I did not expect this, I swear to you. There are so many great actors here and I'm kind of late to this party and I'm very appreciative of it."