The actor's support comes after he squashed breakup rumors.
Austin Butler chats with ET at the London premiere of 'Dune: Part Two,' in theaters on March 1.
ET was exclusively at the London premiere of ‘Dune: Part Two’ with the cast.
Florence Pugh chats with ET at the London premiere of 'Dune: Part Two,' in theaters on March 1.
Zendaya stuns on the 'Dune: Part 2' London premiere carpet in a jaw-dropping futuristic armor look with cutouts.
The actress stunned in the vintage Mugler look.
Stellan Skarsgård chats with ET's Nischelle Turner about 'Dune: Part Two,' in theaters on March 1.
Yes, they've seen it.
Josh Brolin chats with ET's Nischelle Turner about 'Dune: Part Two,' in theaters on March 1.
Chalamet shared his experience working with his 'Dune: Part Two' castmates and also reacted to being called today's 'Brat Pack.'
The 'Dune: Part Two' co-stars are professionals, but admit it can be a little awkward locking lips with a longtime friend on screen.
Rebecca Ferguson chats with ET's Nischelle Turner about 'Dune: Part Two,' in theaters on March 1.
Dave Bautista chats with ET's Nischelle Turner about 'Dune: Part Two,' in theaters on March 1.
Timothée Chalamet and Austin Butler chat with ET's Nischelle Turner about 'Dune: Part Two,' in theaters on March 1.
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