10 Movies That Completely Switched Genre Halfway Through

2. Predator

With his reputation as the action genre's biggest star firmly established following The Terminator, Commando and Raw Deal, audiences were expecting a standard Arnold Schwarzenegger vehicle based on the marketing for Predator, which focused on the uber-macho ensemble of veteran soldiers.

So far, so familiar, as we were introduced to our cast of memorable supporting characters as they made their way through the jungle, blowing sh*t up and gunning down an army of faceless goons in the process. However, one heat-vision shot of a massive claw later, and Predator was turned upside down.

The invisible extra-terrestrial picked off the team one-by-one, and what had initially seemed like a standard 'Arnie goes on a one-man rescue mission' story soon pivoted into hard sci-fi that saw the big Austrian facing off with an eight-foot tall alien with mandibles and a bloodlust for human trophies instead.