Underground Humor

I, Frankenstein just opened. Haven't seen it and don't plan to.  But I did check the reviews in the trades.

Here's the Hollywood Reporter: "Poor Mary Shelley is no doubt spinning in her grave."

Here's Variety: "[...] this listless supernatural actioner surely has Mary Shelley turning in her grave."

It's a natural line.  I wonder how many other reviewers are using it.