Goofs

When Gaston comes to talk with Grandmother, he sits down and unbuttons his jacket. The camera turns to her, and back, he stands up, his jacket has magically buttoned itself, and he once again unbuttons it!

At the ice rink, the only couple that includes a skating instructor are dressed slightly differently than Liane and the instructor. He appears to have a black hat on and she a large black bow on her hat. These items have disappeared when we see a close-up of them skating.

When Honoré Lachaille is having a shave at the barbers, a small amount of shaving cream is left on his face after he has wiped it with a towel. It disappears on the next shot.

When Aunt Alicia is showing Gigi her rings all of a sudden she has a rather large string of pearls in her hands instead.

Position of Gaston's hands changes. This is when he and Gigi are playing cards and wagering the trip to the ocean.

During Gaston's song by the pond thinking of Gigi, there is a fence in the pond forcing the swans to stay in close background. The swans, obviously confused yet undeterred, keep swimming into the fence attempting to get to the swan in deep background on the other side of the pond.

The café where Honoré (Maurice Chevalier) sings "I'm Glad I'm Not Young Anymore" is clearly a studio set. As he leaves the café at the conclusion of the number, a horse and carriage pull up on the street in the background, and their shadows are seen on the painted backdrop of the buildings at the back of the set.

At the end during the last singing of Thank Heaven for Little Girls when the horse-drawn carriage leaves, two women are revealed in the background on the right who seem to be playing badminton, but they are not hitting anything with their racquets.

In the early scene in the park, the principal actor casts a shadow backwards (away from the viewer), while the carriages in the background cast shadows forwards (towards the viewer), revealing the production lighting.

While Gigi is playing tennis, there are wide tire tracks on the surface of the court to Gigi's right.

As Gigi enters Maxim's, the patrons are all mouthing the lyrics to a song that is not heard (due to editing changes).

When Gaston is singing "She isn't thinking of me" at Maxim's, Louis Jourdan's lips seldom connect with the words heard.

At the end of Thank Heaven For Little Girls, after Honoré hands Gigi the book she dropped, his voice sings "thank heaven" on the soundtrack, but onscreen his mouth is not moving - he is looking at Gigi and smiling. Visually he resumes singing only on the final "for little girls."

In the first few minutes of the movie , a courtesan in a carriage and, apparently, one of her gentlemen is in another. Both are going in the same screen direction and looking in the same screen direction, yet are supposedly meeting each other. The courtesan should be looking in the opposite direction and the gentleman's carriage should be moving in the opposite direction.

There is a large mirror in the background in the aunt's private chamber, and film and sound equipment and wiring are reflected in it.

During her visit with Aunt Alicia, Gigi says she has no friends and that she's always on her own. However, in the beginning of the movie, we see Gigi playing with several other schoolgirls, which would seem to indicate she does have friends.

Gaston tells Gigi he realized he loved her while he was away in Monte Carlo. But clearly, he realized it after he returned and they have the dust-up over her new wardrobe. He bursts out the door to sing the theme song about how he is just seeing her as a lovely young woman.

When Gaston and his uncle are hustling the skating instructor out of the restaurant Liane meets them but she seems to have forgotten her fur in the powder room.

After announcing that the year is 1900, Honoré evades the question of his age by saying he wasn't born "in this century". 1900 was the last year of the 19th century, not the first year of the 20th century, so he was in fact born in the present century.

When Gigi's grandmother and aunt meet near the end of the movie, the latter exclaims "Please repeat that again."

The word "again" in the sentence is unnecessary as repeat already means to say something again, and the aunt, with her apparent sophistication, should know this.