Actor Ethan Hawke calls Boyhood, which won best motion picture Sunday at the Golden Globes, an "experiment."
The fictional story takes place over the course of 12 years — and was shot over the course of 12 years. So without special makeup or prosthetics, audiences watch two children grow up and two adults age. Hawke plays Mason Sr., the children's father, and Patricia Arquette plays Olivia, the children's mother. They are divorced.