It's available as Warner Archive MOD.
It's been speculated that the shower scene in MIMI inspired the scene in "Psycho" (I hope it's not the outdoor shower scene at the start of MIMI). However, the shower murder in "Psycho" was in the novel, so MIMI would have to have inspired the author. Would Robert Bloch steal from Fredric Brown?
Thing that bugs me the most about the movie is the reuse of Leonard Bernstein's score for "On the Waterfront."