When Green Lantern destroys the second missile, he is briefly shown without his anti-mind control headband. When he is shown hit by debris shortly after, he is wearing it, then is again without it while falling. In the next scene, as he falls and when he comes to, he is again wearing it.
Solovar brags about how highly advanced Gorilla City technology is, yet Batman is able to pick the Gorilla City technologically advanced hand stocks with a thin metal wire.
The Army sentry addresses Grodd by name despite not being told his name.