Rising Star winner John Boyega poses for photographers backstage at the BAFTA 2016 film awards at the Royal Opera House in London, Sunday, Feb. 14, 2016. (AP Photo)
DiCaprio said it was out of his hands, but expressed pride in what he called "not just a film, but an epic journey we all went on."
"We put our heart and soul into this movie ... It's up to the world now and voters to decide," he said at a post-ceremony news conference.
The best-actress trophy went to Brie Larson as a mother trying to shield her son from a terrible reality in "Room." She won out over Alicia Vikander for "The Danish Girl," Cate Blanchett for "Carol," Maggie Smith for "The Lady in the Van" and Saoirse Ronan for "Brooklyn."