Character mistake: The archbishop wears a red zucco on his head at the dinner. Purple is the color of a bishop or archbishop. Red is the color of a cardinal.
Suggested correction: Generally true, but the specifics are not straightforward. The problem lies in the interpretation of "purple." Depending on the source, the purple may actually be "amaranth red" (which is a reddish-purple, but may look more like fuschia) or "magenta" (which may appear to be a reddish-purple or a purplish-red). Magenta is an equal mixture of red and blue, so the result should look somewhere between red and purple. How these colors or blends are perceived on screen may vary with the tint setting.
Also, it may be possible that the more reddish-looking zuccetto was meant to be and match the choir's red.
Character mistake: The sheriff has his service weapon on him in the cellblock. Whenever law enforcement enters a jail or prison, they disarm.
Character mistake: When they are surprised by Gale, Billy angrily says to Stu "Man, I thought she was dead." To which Stu replies "She looked dead, man. Still does." However, Stu didn't have time to check on Gale, since she crashed the vehicle moments before Sidney is attacked by a Ghostface that had to be Stu himself (since he does the quick clothes switch coming from the car).
Character mistake: When Jerry and Scotty are talking in Scotty's bedroom, after his Mom's kidnapping, there is a poster behind Scotty's door. The poster says "Accordian King" but should have been spelled, "Accordion King."
Character mistake: Stephen Baldwin is alternately referred to as Mark and Luke Dodge, without explanation as to which is his real name.
Character mistake: At the boat when the two bodyguards frisk Shag, he fakes a gay yelp and then walks away with Erin. You can see the one guard on the right, try not to break (crack up) as they walk away.