All the important bits are right there in the name: Kids vs. Aliens. There are kids, there are aliens, and they fight. That’s the gist of director Jason Eisener’s first feature since 2011’s Hobo with a Shotgun. (If you haven’t checked out his excellent docuseries Dark Side of the Ring, do so, even if you’re not a wrestling fan.) Like his previous endeavor, though in decidedly less brutal fashion, what works best here is a total blast, but at times the thesis statement of the title wears a bit thin stretched out to 75 minutes. (And sans credits, it’s more like 68.)