[Hated Trope] Disabled character is played by a very obviously not disabled actor, leading to a performance that feels like mockery.

Gary Oldman playing a little person in Tiptoes by either stuffing himself into a couch, or walking on his knees. Imagining him on the set of this movie with Peter Dinklage is mortifying.

Rosie O'Donnell in Riding the Bus with my sister, playing mentally disabled girl as an unholy cross between Peewee Herman, and simple jack.

Maddie Ziegler in Sia's music. This movie has been talked about to death, but as an autistic person her performance felt extremely reminiscent of how my school bullies would mock me when I was a kid.