During Davis's big dance number in Acuna's office, he tap dances over part of a throw rug. The sound of his taps are the same as when he taps on the hardwood floor of the room, revealing that the taps are dubbed onto the soundtrack.
Four boys enter Mr. Acuña's house with flowers and notes from Robert to Maria. The second to enter has his left arm hanging. In the next shot, when they are seen side by side, all of them are holding the flowers with their both hands.