YOu've seen the basic plot 100,000 times: Big creature, often dino-like, wreaks havoc on major city. BUt this is the one that started the ball rolling. Harryhausen's solo effort is still entertaining, despite the mediocre acting associated with all films like this (it actually adds to the whole experience). This is one you'll want to watch again. Don't let anyone give away anything. Just get it and watch it! Great fun!