Hollywood Acid: A small vial's worth is enough to dissolve the steel cables holding up an elevator car in less than a minute.
Indy Escape: Nostromos flees down the planetarium's main aisle, so Batman cuts the orrery's giant hollow globe of the Earth loose to roll after him. It actually does hit him, but is hollow and fragile enough that it shatters, knocking him down just long enough to be caught.
Off-Model: Not one of AKOM's finer moments, despite some fluid animation at times (like the shadow fight at the end), with the Observatory finale being the worst suspect.
Director Frank Paur: That broke my heart; I designed those planets using a circle template. How hard is it to animate circles? It was done by hand, and if we had done it now, it would have been done on computer and would have looked spectacular. When I knew the show was going to AKOM, a studio I'd had a long history with, I knew they weren't going to be able to pull it off. Admittedly, it was a tough sequence, but they should have been able to do it.
The Mole: Bruce himself joins the cult in order to investigate it.