An "invasion movie" refers to a type of film where a group of outsiders or hostile forces invade a specific territory or location. It often depicts conflicts between the invaders and the residents or defenders of that area. Full definition
And you've probably seen an alien invasion movie as well. (slashfilm.com)
Anyone who's seen their share of home invasion movies can easily predict every single plot point pretty much right after the opening credits. (pastemagazine.com)
This is probably the best home invasion movie since Panic Room, though it is relentlessly brutal in its approach. (hoopla.nu)