Corrected entry: Moonlight Graham had to cross the foul line in order to help save Karin, and according to the plot, anyone who crosses the line can't return to the game. But shortly thereafter, when he begins walking back toward the ballplayers, you can see that some of the other ballplayers have also crossed the foul line.
Corrected entry: A baseball field is roughly 400 x 400, or around 160,000 square feet. An acre of land is just over 40,000 square feet, so a baseball diamond is roughly 4 acres. No farmer is in jeopardy of losing his farm for plowing under 4 acres. Most farms in Iowa are in thousands of acres.
Corrected entry: About half way through the movie, when Ray Kinsella goes to Boston to find Terrance Mann, he stops at a gas station for directions to Mann's apartment. The gas station attendant tells him it is in the building without chickens in the window two blocks down the street on the right. When Kinsella is approaching Mann's apartment building, he is looking at buildings on his left, and in fact goes into a building on his left.
Corrected entry: Ray goes to Chisholm, MN in the present day, and finds out that Dob Graham has died. Later that evening he leaves his hotel room, and finds himself "transported" back to 1972 (which is clear thanks to the license plate and "Godfather" film) to chat with the elder Doc Graham. He should be transported to 1965 or earlier to have this conversation. Later on he meets the younger Archie Graham on the road. Why would Ray be transported to 1972 if not to meet the elder Doc Graham when he was still alive? It makes no sense.
Corrected entry: In the scene where Annie calls Ray to tell him dinner is ready, after Ray goes inside, Annie is putting some frozen French Fries on a cookie sheet, so dinner is obviously not ready.
Corrected entry: At the end of the film, while Ray is contemplating signing away his farm, Terrence Mann gives this big show-stopping speech about why he shouldn't saying, among other things: "...The one constant through all the years, Ray, has been baseball. America has rolled by like an army of steamrollers. It has been erased like a blackboard, rebuilt and erased again. But baseball has marked the time. This field, this game: it's a part of our past, Ray. It reminds of us of all that once was good and it could be again..." Great speech, but why would Mann feel all that sentimental about that era, when baseball was still a good quarter of a century away from Jackie Robinson breaking the color barrier.
Corrected entry: When young Moonlight Graham first arrives at the field, he recognises Gil Hodges. Graham had his stint in the majors in 1905, and would not have recognised Hodges, who played in the 1950s.