Masking the Merc with a Mouth: How Deadpool's expression got animated
Briefly

Directed by Tim Miller and starring Ryan Reynolds as the unconventional anti-hero, Deadpool (2016) kickstarted the journey of bringing the Marvel mercenary to the masses.
Adding convincing movement and showing character through a mask is a tall order, and required the digital warping of certain shots. Wētā FX most certainly managed to pull it off.
Read at Creative Bloq
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