Batman Ninja (2018) runs 1 h 25 min, is rated PG-13 in the US and averages 5.9 from 1,109 TMDB members. Batman, along with many of his allies and adversaries, finds himself transported to feudal Japan by Gorilla Grodd's time displacement machine.
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Streaming availability by JustWatch. In the US, as of 2026-11-08: YouTube Free (free with ads).
Batman Ninja on TMDB · This product uses the TMDB API but is not endorsed or certified by TMDB.

Lights Down is a free tool: tell it your streaming services and how long you have, and it ranks what you can stream tonight, with a this-or-that, a roll, a bracket and a wheel. Movie data from TMDB; streaming availability by JustWatch. Page updated 2026-11-08. This product uses the TMDB API but is not endorsed or certified by TMDB. Lights Down is a Somebody Decide program. How the data works · Legal & privacy · Tonight's lists