Other mistake: If Burt honestly believes he only has days left to live, wouldn't he be wondering why he isn't displaying any symptoms of illness (coughing, fever, pain etc). Also why wasn't he prescribed any kind of medication by the doctor who gave him this prognosis. Kinda silly really.
Short Time (1990)
1 other mistake - chronological order
Directed by: Gregg Champion
Starring: Teri Garr, Dabney Coleman, Matt Frewer, Barry Corbin
Genres: Comedy
Continuity mistake: During the car chase, the bad guys are in front, followed by several marked police cars, then by the red unmarked car; they are all on a curved exit ramp (after the construction zone). In wide shots with no bullets hitting them, the marked cars are Dodge Diplomats, same as the unmarked red car. But in close-ups, when bullets are striking them, the marked cars magically become Chevrolet Caprices. This occurs at least twice. (VHS version.)
Burt Simpson: You can't spend your whole life planning what'll make you happy tomorrow or you'll never be happy today. You've got to do it now.