learned to speak properly. Hansen visited a school for the mentally challenged and watched how the students moved and spoke to get a feel for his character. Hansen recalled, “It was 95, 100 degrees every day during filming. They wouldn’t wash my costume because they were worried that the laundry might lose it, or that it would change color. They didn’t have enough money for a second costume. So I wore that [mask] 12 to 16 hours a day, seven days a week, for a month.”
Filming
Filming took place in Austin, Round Rock and Bastrop, Texas from July 15, 1973 through August 14, 1973, lasting more than four weeks. The cast and crew found the filming conditions tough. High temperatures occurred during filming, with the record high on July 26 at 97F (36C). The record low during the shoot was on July 31 at 83F (28.3C). The house was not cooled, and all ventilation was