When aliens land on Earth in the movies, their intentions are not always clear — until it’s too late. Which visitors meant no harm to our planet, and which wanted to incinerate us or devour us one by one? Here’s a look at the good, the bad, and — of course — the incredibly ugly.
Transformers (Autobots) (2007)
Close Encounters of the Third Kind (1977)
District 9 (2009)
The Day the Earth Stood Still (1951)
Mars Attacks! (1996)
Transformers (Decepticons) (2007)
War of the Worlds (2005)