John McTiernan on the difficulties he faced during the filming of 'Predator' (1987):"The most difficult thing about 'Predator' (1987) was that I was coming into an organization that had its own notions and to some extent, its own corruption. The production designer worked for Joel Silver, one of the producers, and he insisted that we go to Puerto Vallarta in Mexico. I found out later that it was because he owned a house there or something. But the guy did no research and since that was my first