Corrected entry: In the ballroom scene, when Egon shoots the cake, it explodes seconds before the proton beam touches it. (00:36:10)
Corrected entry: When Ray and Winston were driving across the Brooklyn Bridge around midnight in the Ectomobile, Ray quoted a verse of Scripture claiming to be "Revelation 7:12". Although in actuality the verse that contains "...opened the sixth seal...and the sun became as black as sackcloth, and the moon became as blood..." Actually was Revelation 6:12. The writers were one chapter off. (01:03:38)
Corrected entry: When Dana tells Peter of the refrigerator incident, Peter opens the door to investigate. On the top shelf is a can of Coke with the label "Coke" clearly displayed. Just a moment later, he double checks the fridge, where the can now reads "coca-cola." Somebody turned the can between shots.