Batman and Robin run in opposite directions as the chandelier falls. After it crashes they're side by side.
Wonder Woman picks up the receiver to the phone-o-vision and, thanks to an animation error, the cord goes with it. In the next shot, it is reconnected.
In Professor Fearo's laboratory you see 5 Energy Creatures appear between the Wonder Twins and the Super Friends but a moment latter they're gone.
When Wonder Woman goes into outer space to rescue Superman she's not wearing a space suit or even a helmet when she's outside her invisible jet to lasso him.
Superman listens to Batman over his communication device, but he mouths the words as well.