They led Baldy off the set and back to the ranch the other day, his chores ended in “George Washington Slept Here” the latest role in the more than 1,000 he has to his movie credit. Baldy is a horse, 35 years old, and as camera-wise as many of the human actors who surrounded him. Rudolph Valentino once rode him, and so have many other stars. His salary ranges from $25.00 a day upward, depending upon how many tricks he’s called upon to perform. In “George Washington Slept Here” Baldy wanders through the ancient house in the country which Ann Sheridan and Jack Benny have just purchased, adding to their misery. That role was easy for Baldy, so he worked for his minimum.