Harley Quinn's been having some fun at the expense of Robert Pattinson's Batman. Her namesake show recently contained a little reference to The Batman, or more specifically, The Riddler's puzzles from the movie.
In Harley Quinn season 5, episode 9, the anti-villain, Poison Ivy, and Sharon, Harley's mother, go to the Batcave to contact Bruce after Metropolis gets shrunk (it's a wild show.) Once there, they need to hack into his computers by guessing his password.
