Jim Carrey’s performance as the Grinch is one of the most physically demanding roles ever put on film. Behind the green fur and exaggerated expressions was an actor enduring hours of makeup, heavy prosthetics, and extreme discomfort — sometimes spending up to eight hours a day just getting ready to film. What made the role unforgettable wasn’t the costume, but Carrey’s commitment. He used his background in physical comedy to give the Grinch movement, rhythm, and personality, transforming a child

Jim Carrey's real eyes in The Grinch movie