Veteran show-biz news hound Charles Fleming argues that the short, insanely foolish life of producer Don Simpson (Flashdance, Top Gun, Bad Boys) stands as a larger indictment of Hollywood, and it's hard to argue with him. For one thing, Simpson helped create Tom Cruise, Richard Gere, Will Smith, and Eddie Murphy, and his loud, high-concept, low-IQ school of filmmaking helped launch Arnold Schwarzenegger, Mel Gibson, and Bruce Willis to new heights (or depths). Others may have been responsible for 14 Top Ten pop tunes and 10 Oscar nominations, but nobody had thought to combine pop music and movies in a synergistic way.While Fleming concentrates on Simpson's own antics--car wrecks, career crackups, whacked-out drug and sex orgies, whimsical overspending on brain-dead blockbusters--he does make an excellent case that the entertainment industry as a whole is nutty and slutty. Even the more levelheaded stars who turn up in High Concept turn out to be appalling: Fleming documents the behavior that earned Demi Moore the Hollywood nickname "Gimme More."Despite his $60,000-a-month drug habit, Simpson actually did come up with smart ideas, according to many witnesses, and he was sharp enough to know how dumb so many of his colleagues were. Sylvester Stallone, for instance, almost starred in Beverly Hills Cop, and had he not left the project in favor of his notorious stink bomb Rhinestone, viewers would have been stuck with Stallone's rewr