Phil Silvers wears his horn rim glasses throughout the film even though they were an anachronism. He was so near-sighted that he was unable to function without them. In later years he often wore contact lenses.
The hero is introduced several times as "Aladdin of Cathay" referring to Marco Polo's name for (Northern) China. In the original Arabian Nights tale, Aladdin is a Chinese lad and his adventure takes place in a rather Arabian-seeming China. No attempt is made to make Cornel Wilde look Chinese.
Rex Ingram makes a brief appearance as a giant genie in the cave and is dressed and made up to look exactly like the genie he'd played five years earlier in The Thief of Bagdad (1940). He does not come out of a lamp or a bottle in this film, though, but just resides in the cave.