Mr. Norris has paid scrupulous attention to the First Law of Theatrical Success: If you want to hitthejackpot at the box office, be sure not to tell your viewers anything they don't want to hear.
The hope of the trial lawyers is that if they can get enough sympathetic laypeople who are ignorant of medical science, they (oh, yeah, and their clients) can hitthejackpot with even dubious cases.