Before the Best in Show event near the end, after Cookie falls and injures her knee, the person holding the terrier changes from Christy to Scott and back.
At the barbecue for Winky, while Cookie and Gerry Fleck are singing "God loves Terriers", a male party guest (blonde hair) is shown seated at a table in one shot and standing in a different location only seconds later.
When Stefan and Scott check into the hotel, the clock on the wall reads 4:30. When the Flecks check into the hotel after Stefan and Scott, the clocks read 3:05.
The parachute around Winky's neck moves from the left side to the right between shots.
When Sherri Ann appears on the AM television show, she has a cup of coffee. When the camera cuts back to her, she is no longer holding it.
When the judge at the beginning calls out "Best of Breed, Best of Winners, Best of Opposite", this is incorrect. It should be "Best of Breed, Best of Opposite Sex, Best of Winners". The reason is that Best of Opposite Sex is always runner up.
The different photos in the calendars shown at the end each have a complete year calendar below them. This is not a Goof as many photo calendars feature a picture with the entire year below it.
As the judge nears Hamilton's dog for a closer inspection, "Beatrice" suddenly barks and lunges at her. Looking closely, the judge's hand can be seen to be closed tightly as she holds the treats used as incentive for the dog to pursue her.
When Gerry and Cookie check in to the hotel, all 4 universal clocks behind the front counter read 3pm.
At 51:33 when there's a wide shot of the audience, you can see cardboard cutouts standing in for audience members. They're located about the middle top. You can see a few more at 1:02:54 and 1:09:40. They're 2 dimensional looking (flat). It looks like by that time too many extras left and all the shots are of the first section only.
When the hotel manager swipes Gerry and Cookie's credit card, there is no magnetic strip on the back of the card.
When Cookie runs into Malcolm at the pre-show cocktail party, after Malcolm says "Louisville", it then cuts to an over-the-shoulder shot of Cookie. Malcolm then says, "The Mint Julep...you were working as a waitress there", but his mouth doesn't move.
At one point during the Dog Show, supposedly taking place in Philadelphia, PA, an aerial shot of the arena reveals Mellon Arena in Pittsburgh, PA. This was stock footage "borrowed" from Sudden Death (1995), whose plot involves a hostage situation; hence, the excessive number of police cars, which make no sense at a dog show.
At the party for Winky in Fern City, FL, Gerry says they have "to drive 140 miles out of our way" to visit her old flame, who lives in Akron, OH. Akron is about 400 miles from Philadelphia PA. If the fictional Fern City is in the westernmost part of the Florida panhandle, which would minimize the "out of our way" distance, it would be about an extra 270 miles to go to Philadelphia by way of Akron.
During the "naming nuts" scene, Harlan mentions that Hubert would "sing" when he would name nuts as a kid. But during the show, Harlan reveals to Christy that Hubert is only two years old.
When Beatrice is disqualified, Buck Laughlin first uses "he," then switches to "she," then back to "he" again.
(at around 3 mins) An announcer says, "Bring in the cats." It's a dog show.