Plenty of alien invasion movies have become box office hits and certified classics, but here are some forgotten alien invasion movies that still hold up today.

"The Arrival" was quietly released by Orion Pictures on May 31, 1996, one month before the comic book-like alien invasion spectacle of "Independence Day" landed, and a year before

The moment of first contact with extraterrestrials is a staple of science fiction. It usually involves a frantic scientist having a Eureka moment, realising in a single dramatic instant that Earth is being visited by creatures from light-years away.

From the mystery of Cloverfield's Clover to the changing fury of the alien xenomorph, these are the best and most memorable monsters in sci-fi movies.

Apichatpong Weerasethakul’s only feature film in the last decade, Memoria, manages to submerge itself in science fiction (aliens, no less!) with barely a frame of anything even remotely futuristic or extraordinary.