Planes, Trains & Automobiles (1987)

Continuity mistake: When John Candy and Steve Martin are travelling from Jefferson City, Missouri to St. Louis they are crossing the Mississippi River to enter downtown St. Louis. This would not have been possible unless the bus driver overshot the entire city and ended up across the river in Illinois.

Del: You could kill a man like that, hitting him in the stomach. That's how Houdini died you know.

Trivia: When Neal's wife is watching TV in bed, she is impossibly viewing the John Hughes film "She's Having a Baby," which didn't even premier in theaters until February of 1988, three months after "Planes, Trains and Automobiles" premiered in November 1987. John Hughes (who directed both films) used his own unreleased "She's Having A Baby" footage/soundtrack and a cameo by Kevin Bacon as teasers for the upcoming 1988 film. There's still some speculation that the plots of the two films actually intersect, and that Kevin Bacon (who is credited as the Taxi-Racer in "Planes, Trains and Automobiles") was playing his character, Jake, from "She's Having a Baby."

Charles Austin Miller

Question: This question is about the scene where John Candy is the driver, and Steve Martin is the passenger in the rented car. Steve is unaware at one point, that they are going the wrong way on the highway. He becomes aware, after looking out the window and down onto the shoulder of the road with the wet snow splashing up. As soon as he looks at that, he knows they are going the wrong way. What was it about the road that made him realize it?