Paddington Bear was the big winner at the Olivier Awards in London on Sunday (April 12), with a stage adaptation of the beloved children's books picking up seven prizes at Britain's top theatre honours.

"Gone Girl" star Rosamund Pike won best actress for legal drama "Inter Alia".

"I am emotional. I'm an emotional creature. You know, that's why I do what I do. And actually it's my worst nightmare, getting up on stage as me," she told Reuters after collecting her award.

"Snow White" star Rachel Zegler won best actress in a musical for her portrayal of Argentine first lady Eva Peron in "Evita," which saw her performing the show's big number "Don't Cry For Me Argentina" live from a balcony outside the theatre.

Jack Holden beat the likes of "Loki" actor Tom Hiddleston, and "Breaking Bad" star Bryan Cranston to win best actor for true-crime thriller play "Kenrex."

A new production of Arthur Miller's "All My Sons" won best revival and best supporting actor for Paapa Essiedu, who plays Professor Snape in the upcoming "Harry Potter" television series.

Named after actor Laurence Olivier and first handed out in 1976, the awards are Britain's most prestigious theatrical honours.

As well as celebrating their 50th anniversary, the awards marked other major theatre milestones: 40 years of "Phantom of the Opera" and 20 years of "Wicked," with special performances for both.

Sunday's ceremony at the Royal Albert Hall also saw veteran stage actor Elaine Paige receive a special award in recognition of her "defining contribution to musical theatre."

Production: Gerry Mey, Edward Baran/Reuters