Timothée Chalamet wore a shirtless suit to the 'Wonka' world premiere. Here are the 12 best photos from the red carpet.

• Timothée Chalamet plays Roald Dahl's famous chocolate factory owner, Willy Wonka, in "Wonka."
• It explores how he started his company before the events of "Charlie and the Chocolate Factory."

Timothée Chalamet stars as Willy Wonka in Warner Bros.' "Wonka" prequel, which looks at the titular chocolatier before he became world-famous for his sweets, and before he met Charlie Bucket.

"Wonka" is helmed by "Paddington" director Paul King, and stars a number of beloved British stars, including Olivia Colman.

The cast took to the red carpet for the world premiere in London on Tuesday night.

"Wonka" arrives in theaters on December 15 in the US.

Willy Wonka himself, Timothée Chalamet, went shirtless under his pink suit.

Timothée Chalamet at the world premiere of "Wonka" at Royal Festival Hall in London, England.      Alan Chapman/Dave Benett/WireImage

Olivia Colman, who plays Mrs. Scrubbit, wore a black dress with a flowing cape.

Olivia Colman at the world premiere of "Wonka" at Royal Festival Hall in London, England.      Alan Chapman/Dave Benett/WireImage

Hugh Grant plays Lofty, an Oompa-Loompa. He walked the carpet with his wife, Anna Elisabet Eberstein.

Anna Elisabet Eberstein and Hugh Grant attend the world premiere of "Wonka" at Royal Festival Hall in London, England.      Alan Chapman/Dave Benett/WireImage

"The Crown" star Imelda Staunton attended the premiere to support her actor husband, Jim Carter, who plays Abacus Crunch.

Imelda Staunton and Jim Carter attend the world premiere of "Wonka" at Royal Festival Hall in London, England.      Alan Chapman/Dave Benett/WireImage

Keegan-Michael Key plays the chief of police.

Keegan-Michael Key attends the world premiere of "Wonka" at Royal Festival Hall in London, England.      Alan Chapman/Dave Benett/WireImage

"Paddington" star Sally Hawkins plays Willy Wonka's mother.

Sally Hawkins attends the world premiere of "Wonka" at Royal Festival Hall in London, England.      Alan Chapman/Dave Benett/WireImage

Rowan Atkinson stars as a priest, Father Julius.

Rowan Atkinson attends the world premiere of "Wonka" at Royal Festival Hall in London, England.      Alan Chapman/Dave Benett/WireImage

"Ghosts" star Mathew Baynton plays one of Wonka's rivals, Ficklegruber.

Mathew Baynton attends the world premiere of "Wonka" at Royal Festival Hall in London, England.      Alan Chapman/Dave Benett/WireImage

Director Paul King is best known for helming "Paddington" and "Paddington 2."

Paul King attends the world premiere of "Wonka" at Royal Festival Hall in London, England.      Alan Chapman/Dave Benett/WireImage

"Wonka" writer Simon Farnaby also cowrote "Paddington 2."

Simon Farnaby attends the world premiere of "Wonka" at The Royal Festival Hall in London, England.      Alan Chapman/Dave Benett/WireImage)

Former "Great British Baking Show" host Matt Lucas plays another of Wonka's rivals, Prodnose.

Matt Lucas poses for photographers upon arrival at the world premiere of "Wonka."      Scott Garfitt/Invision/AP

Paterson Joseph plays yet another Wonka rival, Arthur Slugworth.

Paterson Joseph at the world premiere of "Wonka" in London.      Scott Garfitt/Invision/AP

"Ted Lasso" star Nick Mohammed brought his kids to the premiere.

Nick Mohammed and sons Finn and Arthur attend the world premiere of "Wonka" at Royal Festival Hall in London, England.      Alan Chapman/Dave Benett/WireImage

The "Wonka" cast, director, and producers all posed together.

The cast and producers of "Wonka" at the world premiere at Royal Festival Hall in London, England.      Alan Chapman/Dave Benett/WireImage