Stop-motion animation is the special effects art form that allows characters such as Gumby to grow from a small green glob on your TV screen to a larger, taller green blob and beyond, all in the blink of an eye.
This 100-year-old technique, which helped launch Walt Disney's career in animation, is explored in "Between Frames: The Magic Behind Stop Motion Animation," an exhibit at the Walt Disney Family Museum at 104 Montgomery St., in San Francisco's Presidio, through April.
On display will be armatures from "King Kong" and "The Nightmare Before Christmas," as well as items from "James and the Giant Peach" and even "Robot Chicken."
Museum hours are 10 a.m. to 6 p.m. Wednesdays through Mondays. Admission is $12-$20; contact 415-345-6800, www.waltdisney.com.