The Underground World ★★★★

2018 Superhero Rewatch: In which I return to superhero movies I've seen before to see how time has treated them.

Loosely based on an Edgar Rice Burroughs story, Superman has to save Lois Lane from a group of hawk-men (not to be confused with Hawkman) living in the center of the Earth. I don't know what it is about "center of the Earth" stories, but I'm a sucker for those, and combining the trope with classic Superman animation is great fun.