HORSHAM, Pa. -- The filmmaker who ate nothing but McDonald's meals for his Oscar-nominated film, ''Super Size Me,'' gave a profanity-laced, politically incorrect speech at a suburban Philadelphia high school, but not everyone was lovin' it. Speaking at Hatboro-Horsham High School's first-ever health fair, Morgan Spurlock joked about the intelligence of McDonald's employees, about ''retarded kids in the back wearing helmets'' and teachers smoking pot in the balcony. The special education students in the back row were led by teachers out of the presentation. ''If you put the whole package together ... it just wasn't appropriate,'' Superintendent William Lessa said....