Batman & Mr. Freeze: SubZero is a 1998 direct-to-video superhero animated feature film, the second based on Batman: The Animated Series, serving as a stand-alone sequel to Batman: Mask of the Phantasm, and starring Kevin Conroy and Michael Ansara, reprising their respective roles from the series as the two title characters. It was produced by Warner Bros. Animation and animated overseas by Koko Enterprises and Dong Yang Animation in South Korea. The film won the Annie Award for Best Home Video Animation.