If you loved The Bat Woman, try Night of the Bloody Apes
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by René Cardona, and they both carry the 3am cult mood tag, and they sit in Horror / Science Fiction territory. If that's the register that drew you to The Bat Woman, the second film will land in a comparable space — through a different lens.
3am cult
What Night of the Bloody Apes is
Dark Mexican jungle night air thick with howler monkey screams a surgeon's scalpel shines under faint operating room light. A desperate father performs a radical transplant on his dying son. This low budget horror reflects its era's fascination with mad science.

