The Last Mimzy, which is supposed to be opening this Friday, is based on the short story Mimsy Were The Borogoves by Lewis Padgett. The story was available on-line so recently that I actually have a hardcopy and have read it. (Not that I'm gloating or anything.) It appears to have disappeared on the Internet. (The Mathematical Fiction site I just linked to also has spoilers, so don't read it if you're planning to see the movie.)
The short story was published in 1943 and seems very mid-twentieth century middle class to me. The parents have drinks before dinner. The family has a housekeeper. Mom is intelligent and seems well-educated but doesn't appear to do anything. The story is also quite dark. As I was reading it I thought it sounded like a Twilight Zone episode. It wasn't, but another short story by Padgett was the basis for a Zone.
Gee, I've mentioned The Twilight Zone two days in a row.
Anyway, the title of the original short story, Mimsy Were The Borogoves, comes from The Jabberwocky, which appears in Alice Through the Looking Glass. The Alice connection continues in the short story. I'll try to get to the movie to see if it appears there, too.
But I'm not giving anything away now.