Other mistake: During Dorothy's and the detective's date, they are outside while the boat is moving, yet there is no wind blowing around. Since the ship is moving there should be wing blowing past the two.
Gentlemen Prefer Blondes (1953)
1 other mistake - chronological order
Directed by: Howard Hawks
Starring: Charles Coburn, Marilyn Monroe, Jane Russell, Elliott Reid
Continuity mistake: At the end of the "Bye, Bye Baby" song the two girls are standing at the railing with two people in between them and the detective. When the shot cuts to their backs the two people in between the detective and the girls have disappeared.
Olympic athlete: Hi. Remember me?
Lorelei Lee: Yes. You're one of the Olympic athletes.
Olympic athlete: I'm the only 4-letter man on the team.
Lorelei Lee: You should be ashamed to admit it. No, don't say another word. No, don't say another word.
Trivia: At the end of the movie, there is a double wedding at sea with the ship's captain officiating. Most people assume that a ship's captain automatically has that authority. However, in order to officiate at a wedding at sea, the captain also must be a minister, a judge or justice of the peace, or a Notary Public.