Actor Allusion: Bruce turns into Clint Eastwoodat one point. Although prosthetics were used in this instance, "Clint Eastwood" was a part of Carrey's facial impersonations routine in his stand-up days.
After Bruce and God finish cleaning the floor together in the warehouse, God says "All-lll-righty then" - a little subdued, but a definite reference to Ace Ventura.
Its also the same monkey from Ace Ventura II that comes out of that guys ass.
Banned in China: Banned in Egypt and Malaysia for showing God in human form. The ban in Malaysia was eventually lifted.
Deleted Role: The original script had the character of Bobby, who worked at the news station, selling snacks. He annoyed Bruce, who then proceeded to damn him, causing him to become demoniacally-possessed. Fortunately, Bruce eventually reversed it.
What Could Have Been: The original plan was for Grace's breasts to continue growing throughout the film; instead of the one-time growth in the final film.
The original script contains a lot more scenes that didn't make it into the final movie. These include: Bruce answering lots of prayers individually (including God showing him the consequences), Grace's breasts growing twice more (and going back to normal after a prayer), Bruce "pleasuring" Susan right before they go on air, a lot more stories covered during the "A Little less Conversation" montage, people confessing their sins to Bruce, and an entire new character called "Bobby", who works at Channel 7, and is damned by Bruce, causing him to become possessed by a demon.