Summarize the movie Mask starring Cher.

The Peter
Bogdanovich-directed film Mask (1985) is based
loosely on the real life story of Roy L. "Rocky" Dennis (1961-1978), who suffered from
the rare sclerotic bone disease craniodiaphyseal dysplasia, also known as lionitis (due to the
facial similarities of a lion). Children with the disease rarely live past the age of 10. Cher
stars as Rocky's biker mother, Rusty Dennis. In the film, Rocky (played by Eric Stoltz) is a
kind, sensitive boy who desires to spend a normal life despite his frightening appearance.
Rusty earns the right for Rocky to attend a public junior high school,...