Other mistake: In the last game, Chet pitches six innings ("You gave me six great innings!"), then Henry takes over pitching, meaning he'd be pitching in the 7th inning. Sounds good, until we fast forward to the 9th, with Heddo batting with two outs... Assuming Henry was perfect, Heddo would be the 9th batter Henry faced, meaning he would've been Chet's last out in the 6th, which of course he wasn't (the Chet play at the plate ended the 6th and he wasn't facing Heddo.) Also, Heddo was seen walking up to the plate after the second out of the inning (the rundown at second base), with Martinella saying something like "holy goosebumps, it's Heddo" as he approached. Heddo would've been on deck, so it wasn't a surprise, plus he would've already been at the plate prior to the rundown play.
Suggested correction: There is a reasonable explanation for both of those points. Heddo could have been a substitution player after the sixth inning, or be a pinch hitter, so hadn't been to bat yet. This would be logical since Heddo is a fastball hitter and they think Henry is still throwing fastballs, so as a last ditch sent him in. For why they didn't notice that Heddo was on deck, they were captivated by the on-field action, and with Henry off the mound going over by first base and doing stupid stuff, hadn't looked over yet to see who was next.
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.
Revealing mistake: When the boys take the boat out, almost every shot shows smoke coming from the rear. If you look closely, the smoke isn't coming from the motor but next to it.
Suggested correction: The smoke is coming from the motor, escaping it through the side, which makes it appear to be coming from elsewhere.
Factual error: When the game is being played against the Dodgers, the sun is in the outfield and putting shadows facing towards home plate and the batter which is illegal in the rules of baseball. The sun can not be in the batter's eyes. This same mistake has happened in other baseball movies too.
Suggested correction: While it is a recommended rule (MLB 1.04), it is not against the rules for a stadium to be aligned any way. As seen here, many stadiums are aligned differently. Https://www.baseball-almanac.com/stadium/ballpark_NSEW_NL.shtml#:~:text=Major%20League%20Baseball%20clearly%20states,1.04%20to%20be%20ignored%20by.
True, however all stadiums are built with home plate on the south, north or west sides of the stadiums (including SW, NW) NO stadium has home plate on the EAST side (or NE, SE, etc) for this specific major rule.
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.
Factual error: It is announced that Henry's first game is on August 14. But in the next scene his friends are seen in a crowded school cafeteria. It's summer which means school wouldn't be in session. If it's summer school then there wouldn't be that many kids in the cafeteria and I doubt the girl Henry likes would be attending summer school.
Suggested correction: It is possible that school would be in session. Where I live, school starts the first week of August.
