A Toros player hits an obvious ground ball (considering the angle, the ball hits the ground just out of the camera's shot), but in the following shot, Tanner, playing shortstop, catches it as if it were a hard line drive.
Michael Leak sets his lunch box and jacket on a bunch of wooden pallets in the parking lot. The pallets weren't there when Kelly had arrived barely two minutes earlier.
The "No Parking/Tow Away Zone" sign is first shown partially hidden by a plant. Moments later, when the police car pulls up, the sign is now plainly visible and nowhere near the plant.
Opening scene of the movie when Engelberg rides up to the ballpark the sky turns from a overcast late day shot to a sunny early day shot.
After the Bears commit "the hidden ball trick," the Bears celebrate and the centerfield scoreboard says "Sometimes even your best friends won't tell you," and the leftfield scoreboard shows 4 1/2 innings, but it in an up close a few seconds later, it shows a "0" being put on the board.
In the famous "hidden ball trick" scene against the Toros, the Bears pitcher is on the mound during the trick. This would make the play impossible because being on the mound "rubber" without the ball is considered a balk at any level of baseball.
The Bears are the visiting team yet somehow they bat in the bottom half of the innings.
The game was to be a sell out, or near sell-out. However, there appears to be a limited number of extras available. In several shots, the Astrodome is obviously empty except for the first few rows. Looking near the top of the screen, you can easily see the empty seats.
During the hidden ball trick. Off camera you can clearly hear the director give instructions to the ball players.
They give Lupus a framed picture of him making a catch from the championship game, but it's obviously just a still shot from the first film and it would be impossible to have a close up picture of him catching the ball when he was alone in the outfield.
When Coach Manning (Dolph Sweet) says "Up Up" to Miguel, the audio is way off. In fact, the second up comes when Sweet's mouth is closed.
Shadows of the camera and crew visible when Kelly Leak is walking off the field after having an argument with his father.
As the bears are driving towards Houston from Los Angeles (Van Nuys), they are driving into a sunset, which sets in the west, not the east.
The Bears claimed to be staying "downtown" at the Houston Hilton. Downtown Houston is about 7 miles from the Astrodome, they would not have been able to see the Astrodome from their hotel windows. The only hotel that would have offered the view shown would have been the Sheraton, now the Crown Plaza, which is across Kirby drive from the Astrodome/Reliant Stadium complex.
It makes no sense for the Astrodome officials to try to stop the game because it was taking too long to play. No baseball game has a time limit. The game is played until the final out, no matter how long the game lasts.
When Kelly first greets his dad at work, Mr. Leak has a lunch box and thermos that he set on the trailer. A few minutes later, when his girlfriend drives up, he jumps right into the car without his items. You can still see them when they pan to Kelly.