I could complain that James Cameron is criticizing a movie that he apparently did not see. But I have seen both films being discussed. Piranha was a terrible, an unforgivably hypocritical and misogynistic piece of boring garbage that was made that much worse by the mediocre 3D conversion that turned this trashy matinee picture into a $15-a-ticket eyesore. Avatar was one of the best films of last year and is by-far the highest-grossing film of all time at least partially due to its pure storytelling quality. I don't agree with James Cameron in principal that only certain-level films should be in 3D, but I'll give the win to the man who knows how to actually make 3D work in live-action. Until someone, anyone, can make a live-action picture that looks as good in 3D as Avatar did, Cameron gets to whine all he wants about others cheapening 3D technology.Scott Mendelson