The Revenant has dominated this year's Baftas, winning three of the biggest awards including best actor for Leonardo DiCaprio.
The outdoor epic was named best film, while Alejandro Gonzalez Inarritu received the best director gong.
DiCaprio, 41, hailed the influence of British actors on his career, thanking his co-star Tom Hardy and sent happy birthday wishes to his mother as he collected his award.
The American, who is hoping to land his first Oscar later this month, said: "Thank you Bafta - I'm absolutely honoured by this award.
"As an actor I've been influenced by so many British actors.
"I want to thank one particular British actor and that is Mr Tom Hardy.
"Of course Alejandro - thank you for becoming a great friend. I didn't grow up in a life of privilege. Mom - happy birthday. I love you very much."