Right before the fight between Debra and Ray, there is already egg plainly visible on the wall in the background. There must have been a previous take where Ray dumps scrambled eggs on Debra and they didn't clean it all up before filming the scene that made it into the movie.
When the guy accosts the two women in the bar, her remove the cigarette from the lips of one woman. When he returns it to her, it changes position in her hands before being 'out', then re-lit and further burned than when it was out.
Although the film is set in Pennsylvania, Debra and Jesse are seen exiting a 'Trucchi's' grocery store. This chain only exists in Massachusetts.
Pennsylvania cars don't have front license plates. In several scenes, especially when Deb is moving her home, the cars have front plates. Pennsylvania is too cheap/stubborn/foolish to require front plates, and not a single car in PA has one.