The actress confirmed internet rumors while walking the red carpet at the film’s London premiere.
At that time, a big-name celebrity who makes an appearance in the film was still under wraps.
But no secret can stay buried forever.

Samir Hussein/WireImage
It’s so secret that her name does not even appear in the closing credits.
“It required so much work to keep that secret,” Villeneuve told EW.
“Everybody signed with their blood.”
As for joining the cast, the actress said, “This is a dream come true.
Dune: Part Twois in theaters March 1.
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