Revealing mistake: When Carl is caddying for the priest during the bad weather, the wind is so strong that it is almost blowing them over but the trees are not moving in the background.
Other mistake: During the dinner party scene, Carl is going gopher hunting. The shot of him approaching the tree shows it's daylight in the background, when the previous shot showed it very very dark out.
Continuity mistake: During the marina scene, Al Czervic's (Rodney Dangerfield) boat appears to have its bow spray water toward the boat rather than normally away from the boat.
Continuity mistake: When Lacy visits Ty at his house, Ty offers her a drink. As he leaves the bar area he has the Perrier bottle and bottle opener in his left hand and the glass with lemon in his right. In the next shot, he's shown handing the glass to Lacy with his left hand and the Perrier bottle and opener is now in his right hand.
Revealing mistake: Lesser caddies sneaking around the golf course are seen with the print of their T-shirt in reverse (mirror) image, suggesting a decision by the director (Harold Ramis) to influence the on-screen direction of movement.
Visible crew/equipment: The crew and boom are reflected in the car door when the red convertible pulls up on the green.
Continuity mistake: Early in the film, when Ted Knight arrives at the final hole and Rodney calls out "1000 bucks you miss the putt", we initially watch Ted line up the putt and it is only about 2 feet long (shoulder width). The shadow from his head is only a few inches from the hole. After getting flustered by Rodney's bet, Ted again sets up over the ball, and suddenly the putt has doubled in length. More importantly, the sky has changed from mostly sunny to considerably cloudy and the shadow from his head is at least 4 feet from the hole.
Revealing mistake: In the swimming pool scene, Lacey Underall's high dive is not done by actress Cindy Morgan and is obviously done by a stunt double and/or professional diver.
Revealing mistake: During the pool scene, one of the boys loses his shorts, it's obvious he is wearing flesh-coloured underwear.
Continuity mistake: During Lou's speech after breaking up Noonan's fight, the dart board against the back wall in the caddies' shack switches from a regular darts to whatever game is on the back. The position of the dartboard also moves.
Deliberate mistake: The floating candy bar that clears everyone from the swimming pool is a Baby Ruth, but Baby Ruths don't float, they sink like a rock.
Visible crew/equipment: During the last sequence at the last green there are shots of the doctor and the judge (particularly the one where the judge pulls out "Billy".) If you look in the bottom left hand of the screen you can see a shadow of a camera, and at times, the head of a crew member.
Continuity mistake: When Rodney Dangerfield bets the judge $1,000 that he will miss the putt, Lacey's legs switch from being spread to being closed and back again.
Continuity mistake: During the Big Match scene, Al's character is seen sweating profusely, seemingly in an instant.
Factual error: In the very beginning (2nd scene) just after Danny (the Caddy) eats and then jumps down from the backside of his house and hops on his bike to head to work, look in the background behind him and at about the 5th house or so he passes you will see a classic palm tree in the front yard. The movie takes place in Nebraska (which doesn't have any palm trees of course).
Factual error: When Judge Smails lectures Danny in his office after catching him with his niece, he states that he has sentenced boys younger than Danny to the gas chamber. Nebraska has never used the gas chamber for capital punishment.
Suggested correction: Does Judge Smalls say the state where he does so?
Revealing mistake: No one dressed as Tony D'Annunzio could swing a golf club, and the "swing" he does produce wouldn't send a ball very far.
Continuity mistake: When Maggie and Danny are in her room about to make love, her shirt is down and you can see something under it. The scene changes to a wider shot and her main shirt is further up again.
Continuity mistake: When Danny and Tony get ready to fight, Tony has his hands up in "fighting position." When his brother lands on Danny's back, Tony drops his hands to his side. The next shot where there is a close-up of Tony, he has his hands up in the "fighting position" again.
Continuity mistake: The little boy that is identified as a nephew is sitting right of the father at the beginning. He disappears when Danny puts money in the jar and we can see the father. His chair is even empty.
