Just prior to the final game, a lady in the stands is shown with an Angels baseball cap, wings, and an angel costume on. Just seconds after, she is shown walking into the stands.
At the time of filming, Anaheim Stadium was completely enclosed (to accommodate the Los Angeles Rams, whom the stadium was also home to). Aerial stock shots taken at Anaheim show an enclosed stadium, but the rest of the movie depicts an open one.
During one of the first games shown, Whitt Bass is shown as the Angels starting pitcher. In the very next game he is also shown pitching. This is only possible if he is a reliever, but he was previously shown as a starter.
After the game against the Oakland Athletics, when Hemmeriling scores, the scoreboard is shown, constantly giving the Athletics errors, and shows the Angels have one run. In the next shot of the scoreboard, the one is now a zero.
In the top of the ninth in the game against the White Sox, a sacrifice bunt moves the lead runner to second. In the next shot, the pitcher Mel Clark checks a runner at first, though there is only one man on base (at second).
On the 3-1 pitch by Mel Clark to the White Sox Hitter, Ranch says that it could be the game as the ball is headed down the Left Field Line. Since they are playing at home, the Angels hitters would have 3 outs to either tie and continue in extra innings or take the lead if White Sox took the lead in the top of the inning.
The California Angels use the 3rd Base Dugout in real life and not the 1st Base Dugout as depicted in the film.
On the 3-1 pitch by Mel Clark to the White Sox Hitter, Ranch says that it could be the game as the ball is headed down the Left Field Line. Since they are playing at home, the Angels hitters would have 3 outs to either tie and continue in extra innings or get a walk off win.
When George Knox is looking through a box of baseball memorabilia he finds his 1979 National League MVP trophy. The real 1979 National League MVP was shared between Pittsburgh Pirates First Baseman Willie Stargell and St. Louis Cardinals First Baseman Keith Hernandez.
On the 3-1 pitch that Kit "Hit or Die" Kesey hits barely foul, the ball comes off the bat as if it were headed to center field well in fair territory as opposed to hooking foul as shown.
When George Knox is in Maggie Nelson's car with Roger and J.P. talking to Roger about the relationship he had with his dad, J.P. looks at the camera for a second.
Though released in 1994, the film is based on the 1993 season as the Detroit Tigers and Milwaukee Brewers are still wearing their respective uniforms of that season. Also the Oakland A's are wearing their all Green Cap with a white "A's" on the cap. In 1994 the A's away cap was change to an all green crap with a gold "A's" logo on the cap.
When George Knox tells David to buy the kids Angels jackets, David responds by saying it's 90 degrees outside. This would be true if they were filming in Anaheim in summer but Oakland summers are moderate and rarely reach typical summer weather. That's why some of the Angels players are wearing Jackets in the dugout.
The "road" game with the Yankees was filmed obviously at Oakland Coliseum. Also for the game with the Yankees, the Angels are in the first base dugout which is also wrong as the Yankees dugout has always been the first base dugout at Yankee Stadium.
During the "road" game with the Yankees George Knox looks over to J.P. and Roger who are at the game. Given that the Angels were in a pennant race and it was late in the season, the game would have been played in September. Also Roger and J.P. would have been back in school by now and it would have been impossible for Knox to take the boys out of school and fly them to New York and sit by the dugout. The Yankees (and all other Major League clubs) forbid the visiting team to have guests sent in the front row by the dugout. In actuality, the boys would have been Knox's guests and would be sitting in the press box at Yankee Stadium where most visiting teams wives and children set for away games.
After their loss to the Blue Jays, a Blue Jays cap is clearly visible in the Angels locker room.
When Roger and J.P. return from the championship game J.P. waves to Maggie from the window and when he says Maggie, his mouth isn't moving.
During the beginning of the movie, Roger (the boy who sees angels) is up in a tree looking into the game with binoculars. At this time you can clearly see a cameraman reflected in the lenses of the binoculars.
When George and the two kids are about to get into the van, a boom and the sound crew are reflected in the van's windows.
When Ben Williams (Matthew McConaughey) is first helped by the angels a stepping device can be seen as he is lifted by the angels.
A radio announcer can be heard saying, "Welcome to Downtown Anaheim" in reference to Anaheim Stadium. The stadium, in reality, is located 3½ miles from Downtown Anaheim, in the extreme southeast corner of the city of Anaheim, on the border of the city of Orange.
When supposedly at the Anaheim Stadium, the logo for the Oakland-Alameda stadium is visible.
Oakland Coliseum serves as a replacement for Anaheim Stadium and though the producers managed to change the outfield walls from green to blue to mirror the real life Anaheim Stadium, several Oakland area businesses with the Oakland Area Code (510).
The "road" game the Angels play against the Yankees was clearly filmed at Oakland Coliseum, with the scoreboard (and its giant Safeway logo) visible during some shots.
When George is about to give the boys a ride home from the game, J.P. won't get into the car because he and his mom used to live in a car and every time he gets into one, he has a stomachache. Later, after Roger's court hearing, J.P. leaps into Maggie's car with Roger without a second thought.
When Knox invites Roger and JP to the game, Roger says JP doesn't like strangers, but when JP is walking for the photo he walks right up to Mel Clarke and talks to him.
In the film, the White Sox are shown as being in the West Division along with the Angels. They are not shown to be in the East Division. As this movie was completed before the '94 season's new playoff format was enacted, one team from each the West and East division would play in the Championship series. To win the pennant, the winner of the West division must beat the winner of the east, or vice versa.
During the Angels' game against the Chicago White Sox, Ray Mitchell hits a home run in the late innings. As he approaches home, he clearly fails to step on the plate.
After Toronto Blue Jay Asher Lazzato hits the fly ball that is caught by Ben Williams with the help of two angels, he appears to stop running. In a real baseball game, the batter would continue to run after hitting a fly ball.