In Bigelow v. R.K.O. Radio Pictures, 327 U.S. 251, 66 S.Ct. 574, 90 L.Ed. 652 (1946), to demonstrate the damages suffered from a discriminatory system of motion picture showings, petitioners introduced a comparison of earnings, during a fve year operation of their own theatre with earnings, during the same period, of one of respondents' theatres (comparable in size, but inferior in location, equipment, and attractiveness to patrons) which had been allowed to exhibit pictures ahead of petitioners. Other evidence dealt with petitioners' operation during a period when it had been able to find and show some films which had not been selected by respondents' theatres and thus had not been previously shown there. This period was contrasted with operations after the practice of showing double-features made it almost impossible to find any films which had not been selected for previous showing in respondents' theatres. The Supreme Court found these two classes of evidence not to be mutually exclusive, and the Court further held that the evidence of damage was sufficient to support the jury's verdict.