Goofs

During the Opening Day scene, the color of the opposing team's uniforms changes from gray & red to gray & green.

At the end of the 'Strictly USA' dance number when the dancers start to cheer, a few frames are played in reverse.

(at around 18 mins) When K.C. Higgins steps into the batting cage to demonstrate the correct batting technique to O'Brien, certain members of the baseball team are watching her. When it cuts immediately to a different shot, the baseball players, as well as the amount, have changed.

Near the end, bottom of the ninth inning, Nat Goldberg gets a hit, and the 45 foot running lane line is clearly visible. Next batter, Dennis Ryan gets a hit, and the running lane line is gone.

(at around 17 mins) When K.C. Higgins is first watching Eddie O'Brien taking batting practice, she is sitting down holding her parasol with one hand, and the other hand is resting on her lap. On the closeup edit immediately after, she is holding the parasol with two hands.

The Wolves wear the same uniforms on the road as they do at home, but professional baseball teams had different uniforms for home and road, at the time usually white for home and gray or a team color for road.

Esther Williams's swimsuit is a bit short for the style of circa 1910.

Theodore Roosevelt is portrayed as throwing out the ceremonial first pitch at a baseball game. The practice of presidents throwing out the first pitch did not begin until the presidency of William Howard Taft, Roosevelt's successor.

When Ryan and O'Brien are performing their Vaudeville act, they sing "Take Me Out To The Ballgame", which was written in 1908, but they sing the version with the rewritten lyrics done in 1927. This film take place circa 1910.

In the ninth inning of the first game, Ryan runs to second base on the passed ball, and Goldberg is out at home. But after the argument, Ryan is seen at third base. As time would have been called during the argument, he would not have been allowed to run to third during the argument.