Continuity mistake: In the big game the Cubs' manager says to Chet, "You gave me six great innings." But somehow, Henry pitches four innings when there are no extra innings in the game. How unusual.
Continuity mistake: In the final match of the season, the time shown on the scoreboard clock remains the same throughout.
Continuity mistake: When one of the batters is hit, watch closely and the ball is tossed from above.
Continuity mistake: When Henry, his mom and Chet are in the airport, the scene shows Henry and Chet just coming out of the gate and they have no bags in their hands. They start running away from the media with Henry's mom across the skywalk, then it shows them exiting the airport still running. Both Chet and Henry have bags in their hands.
Suggested correction: We see a blue strap going over Henry's right shoulder when exiting the gate and first approaching the reporters, and after Chet grabs him at the gate we see the straps attach to a blue sports bag. We also see a fast glimpse of a brown bag on Chet's left, mostly covered by his suit coat, which is then very visible as they are running through the terminal and climbing into the limo. Chet's bag isn't visible until they are running because it is low and blocked by the people around him.
Continuity mistake: In the opening scene when Cliff Murdoch's radio fritzes out, Cliff is fiddling with his microphone, but then in the next shot, the microphone is down on the tabletop in front of him. (00:03:10)
Continuity mistake: At the end, in the big game, they show Henry striking out people as usual after replacing Chet Steadman. During the time when they show one strike after another, for a few seconds, you can clearly see that Chet Steadman is back on the mound.
Continuity mistake: In the scene where Henry, his mom and friends are going down the escalator from getting Henry's cast off, Henry's Mom is on one side and the boys are on the other. The side that Henry's Mom is on is going down, but the side that the Boy's are on is going up. They are all standing still for a minute, but they stay side by side while one escalator is going up and the other is going down.
Continuity mistake: At the party, Larry talks to Jack. Jack is looking directly at Larry but the scene switches angles and Jack's head is tilted down instantly.
Continuity mistake: While flying on the road trip, the interior shots show a widebody aircraft with twin aisles. The exterior shots show the much smaller 727, which only has a single aisle.
Continuity mistake: Towards the middle of the movie, they show the Cubs shortstop make a play. The stands behind him are completely empty, however, just a few scenes later they are filled with people.
Continuity mistake: When the Cubs are in L. A. Playing the Dodgers, Henry walks when he goes up to bat and when he gets to first base, the pitcher attempts to pick him off. Henry slides back headfirst safely. He gets some dirt on his uniform. They cut to the pitcher and then cut back to Henry, who now has less dirt on his uniform than he did before.
Continuity mistake: When Hedo comes in for the final at-bat, he's a right-handed hitter as always (and Henry's a right-handed pitcher so there's no switch-hitter issue). However, the shot right after shows a hitter digging in on the left side of the plate, then shifts back to a view of Hedo on the right side. The direction of the tip of the plate, which is a pentagram, makes it obvious.
Suggested correction: When we see the feet of the player digging in, the point of the pentagram is to the player's right, i.e. in the direction of the camera, which is correct for a right-handed hitter. Note the angle farthest from the camera is a right angle, and a ~135 degree angle is the next closer, meaning the point is pointing at the camera (the actual point is just off screen, at least on my video). Also, the foot he digs in is the right foot, which would be the back foot for a hitter, which is also consistent with the camera being behind home plate.
