Tone-deaf Gloria Grahame sang without dubbing. Her songs had to be edited together from recordings made almost literally note by note.

Shirley Jones' film debut.

The ending scene in the "Kansas City" routine proved to be rewarding for Lizanne Truex and Jane Fischer. Jumping off a moving train into the arms of the waiting cowboys required perfect timing. Just before the first take, a union representative called for an adjustment, which turned out to be $250 in hazard pay for each jump. Seven takes later, director Fred Zinnemann was satisfied. Truex remarked that they must remember to call for an adjustment more often as she had a 1951 Ford to pay off.

The song "Kansas City" was edited for censors. Will sang it, "I could swear that she was padded from her shoulders to her heel. And then she started dancing and her dancing made me feel that every single thing she had was absolutely real." In the original play script it went, "I could swear that she was padded from her shoulders to her heels. And later in the second act when she began to peel. She proved that everything she had was absolutely real."

Finding "corn as high as an elephant's eye" proved to be quite a challenge. Since filming was to take place out of season, no tall cornfields were to be found anywhere. The job was given to the people of the University of Arizona Agricultural Department, who planted each stalk in individual containers and held their breath. With rain and good luck, the corn grew to a height of 16 feet, causing Oscar Hammerstein to quip: "The corn is now as high as the eye of an elephant on top of another elephant."

Continuity

When everybody stops by Aunt Eller's on the way to Skidmore's party. she invites the ladies to come in and freshen up. The Goon girls are among the first to be greeted by Laurey. When Aunt Eller asks Curley if he is going to water his horses too, The Goon girls can be seen behind Curley; in the next shot, they are back on the porch again.

During the auction, when Curly makes the highest bid, Aunt Eller bangs the gavel SO hard that it breaks to much laughter. It is fully intact in the next shot.

In the final "Oklahoma!" scene, everyone is gathered round outside Aunt Eller's house, with Curley and Laurie singing. Will Parker and Ado Annie slip in at the back but then they suddenly disappear and nobody notices.

When Laurie walks into her house when the crowd arrives before going to the Skidmore party, she hears the two girls talking about Curley. One girl's hair is in a long ponytail. The camera pans around the room, and when it goes back to Laurie and the two girls, the girl's hair is no longer in a ponytail.

In the early scenes at Aunt Eller's, the corn disappears and reappears between shots.



Factual errors

As the train came to a stop for Will Parker's arrival, the locomotive was chugging hard and making a lot of smoke. In the actual operation of a steam locomotive for a scheduled stop, the fireman would have stopped stoking the firebox some distance out and the engineer would have closed the throttle as they approached, resulting in very little smoke and chugging.



Revealing mistakes

During the auction scene, when Aunt Eller forcefully slams the gavel on Curly's high bid, the hammer breaks, and the head launches towards the camera, almost hitting the lens.



Miscellaneous

When the words "The End" appear a square section of the sky/clouds directly behind "The" suddenly moves upward. However, It is fixed in the Blu-ray release.



Audio/visual unsynchronized

When Laurey is singing "Many a New Day" in the bedroom, she puts her arms above her head. When she turns she is still singing but her mouth doesn't move.

In the Todd-AO version, in the song "Farmer and the Cowman", Aunt Eller tells a little story near the end of the song. On the soundtrack lyrics, you hear the word "danged," but if you watch Charlotte Greenwood's lips, you can see that she clearly says "damned," which are the original lyrics of the song in the stage version. Either Ms. Greenwood made a mistake, or the production team decided to tone down the language in the song in post-production.



Crew or equipment visible

In the beginning of the song "Oklahoma!" there's what appear to be a camera and camera operator shadow on Curly and Laurey as they sing "Brand New State."

When Will Parker is giving Ado Annie the "Oklahoma Hello," you can see a camera shadow as it pushes in on their kiss.



Errors in geography

There are no mountains visible near Catoosa.