Plot hole: Clarence Beeks plants the angel dust on Winthrop at the Heritage Club, which is discovered by the police at the station. Though he's out on bail, Winthrop is still facing years of jail time if convicted. But nothing again is mentioned about it for the rest of the movie, nor is he trying to clear his name.
Trading Places (1983)
1 plot hole
Directed by: John Landis
Starring: Eddie Murphy, Dan Aykroyd, Jamie Lee Curtis, Frank Oz, James Belushi, Denholm Elliott, Ralph Bellamy, Don Ameche
Visible crew/equipment: After Mortimer's comment that Billy Ray has probably been stealing since he could crawl, when it cuts to the two officers opening the squad doors to place Billy Ray at the back of the vehicle, the barndoor set lighting is visible over the squad car at the top right corner of the screen. (00:18:25)
Billy Ray Valentine: Thanks a lot. How'd you like a stump up your ass?
More trivia for Trading Places
Question: How much did Louis and Valentine make after they scored at the commodity exchange?
Answer: Without knowing precisely how many stocks Winthorp and Valentine sold at the beginning, there is no way to get an exact figure. But we can make some educated guesses. Frozen Concentrated Orange Juice is sold in contracts, with each contract containing 15,000 pounds. By the end of the day, Winthorp and Valentine were making at least an 84 cent profit on each pound, and $12,600 on each contract. If they sold 20,000 contracts, their profit would be $252 million. Considering the Duke's lost $394 million, that estimate seems to fit (and is likely even a little low).