It's not the movies fault.
The killer wanted a high body count, and was relying on the movies popularity to draw in the midnight crowd.
Also, AOL is under contract to advertise the feature. And the Producers had done nothing to violate the terms of that contract.
Other people asked questions on similar topics, check out the answers they received:
Other people asked questions on various topics, and are still waiting for answer. Would be great if you can take a sec and answer them