Batman: Gotham by Gaslight is a 2018 animated superhero film directed by Sam Liu, written by Jim Krieg, and produced by Bruce Timm, adapting the 1989 DC Comics graphic novel by Brian Augustyn and Mike Mignola. Released February 6, 2018 on home media, it runs 78 minutes and is rated R, the first R-rated entry in the DC Universe Animated Original Movies line. In an alternate Victorian-era Gotham, Batman hunts Jack the…