Mitchell Brothers Screening Discount Ticket. These were X-rated movie theater chain started by Jim and Artie Mitchell on July 4, 1969. The venue was perhaps the first in the country to get the girls off the stage and into the laps of the customers. Hunter S. Thompson declared it "the Carnegie Hall of public sex in America" and Playboy magazine praised it as "the place to go in San Francisco!" Measures 2.5 x 3.5 inches.