Goofs

The black ash crosses on characters foreheads constantly change shape throughout the whole movie.

In the opening scene when Sean Sullivan shots the three guys in the bathroom you hear 3 gunshots (there is no visual of the event here). At time index 1:12:18, Sean Sullivan goes to the bathroom and shots the three guys, you hear four gunshots

In the beginning, three years after the opening shooting, when a group of guys are at the bar, one comments on how Dolly Parton was on Johnny Carson last night. Dolly Partons appearances on the Tonight Show were in September of 1980 and June 1982, no where near Ash Wednesday which is normally in February or occasionally early March.