Be advised that Transformers: Age of Extinction features massive amounts of robot-on-robot violence, as the heroic Autobots must battle the evil Decepticons, with humanity caught in the middle. How did things get so dire? Aren't robots supposed to be our friends?
According to the first law of robotics, set down by science fiction writer Isaac Asimov in 1942, "a robot may not injure a human being or, through inaction, allow a human being to come to harm." Filmmakers, however, are bound by no such law, and have been devising ways for robots to attack humans ever since, as the following list of examples will demonstrate.
(Note to die-hard horror fans: While some of the movies below have disguised themselves as straight action pictures, there is genuine horror in the scenarios that play out involving robots, giant or otherwise.)
X-Men: Days of Future Past (2014)
The giant, implacable robot Sentinels were tasked with stamping out mutants, but instead are destroying the Earth. It's an extremely bleak future that awaits mankind unless the X-Men can stop them.
In the remake, the drones manufactured by OmniCorp are not the enemy; it's the humans who control them who are the real villains. But ordinary humans are no match for drones like the ED-209. It's up to the only robot with a shred of humanity to save the world.
I, Robot (2004)
Borrowing its title from a collection of short stories by Isaac Asimov, the film twists the Three Laws of Robotics to its own ends, which is a horror story all on its own! Robots have been killing humans in this variation, and police detective Will Smith is forced to team up with a robot to solve the case.
Chopping Mall (1986)
The movie offers one sure cure for an addiction to shopping, though it's not a very pleasant one. A shopping mall installs a new high-tech security system, featuring three armed robots, but no one realized that a lightning strike might transform these robots into killing machines.
Blade Runner (1982)
Ridley Scott's influential classic revolves around a small group of "Replicants," synthetic humans, who rebel against the system when one of them (Rutger Hauer) becomes aware of its "expiration date." Retired "Blade Runner" Harrison Ford is called back into service to track them down and "retire" them.
Things go horribly wrong at a a massive amusement park designed strictly for adults when a mysterious infection spreads through all the robots, who start killing the guests. Yul Brynner is a gunslinger with deadly aim.