The 1931 license plate is incorrect. The real plates read "COLORADO 1931" in smaller font below the main number, not "19 - COLORADO - 31".
The extras in the taxi behind Buzz's corvette are seen laughing and smiling.
Two boys at the bus station look directly into the camera and laugh.
The same background extras in the street can be seen walking duplicate times.
People can clearly be seen in the background during the street scenes watching the filming.
Many of the street extras are looking either directly into the camera or walking stiff and staring straight ahead.
Dan Duryea says that the Roc is an extinct bird. This bird comes from Greek mythology and never actually existed.
Tod claims that the banker let him hold four new crisp $1,000 bills though the last year a $1,000 bill was printed was in 1946. Now since $1,000 bills did not circulate that much they could have been crisp and new looking.