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 chase scene when the two cars are side by side down an alley, one car is scraping the guard rail and making sparks, but in the background the guard rail is still sparking with no car near it.
Carl Stark: Burt is chasing Stark up a long stairwell in an office building. Stark is a few flights above Burt. He throws a hand grenade down the stairs. It lands right in front of Burt. Burt shouts with elation that he is finally going to die. The grenade rolls away and falls down the middle of the stairwell exploding harmlessly far below. Stark looks down and says, "Yeah."
Burt Simpson: Burt suddenly peeks out from just a few flights below Stark and shouts, "you missed ME again, you idiot!"