Continuity mistake: When Giselle opens the window in Robert's apartment, in the exterior shot, to sing for furry cleaning help, there is a set of three windows to her right, with a balcony. Odd thing is, in the interior shots the window she sang from is to the left of the couch, but to the right of the couch there are three French doors, not windows, that open to the balcony. (00:25:20)
Visible crew/equipment: At Robert's apartment, when he and Morgan stand by the window just as Edward takes Giselle's hands and later kneels, the actors' two T-marks are visible. The pink marker was for Giselle in the previous shots, and Robert and Morgan stand behind the orange marker. (Only visible on fullscreen DVD.) (01:09:35)
Continuity mistake: When Giselle, Robert and Morgan are at Bella Notte's, on their table the pizza pan sits atop a chrome stand. In some shots the stand has a chrome cross bar, between its side legs at the base, and in other shots that cross bar is gone. (When setting up for the shots within this scene, the props guys simply turned the stand upside-down sometimes, which resulted in the cross bar either being on the table, or directly under the pizza pan thereby disappearing.)
Visible crew/equipment: At the apartment, after Giselle falls asleep on the couch, when Robert says, "Just because she has on a funny dress, doesn't mean she's a princess," and a few shots later, when he stands to call for a taxi, the side of the camera and the boom mic are reflected in the window to Robert's right. The boom mic moves in both shots, but the camera moves only in the second. (Only visible on widescreen DVD.) (00:22:10)
Continuity mistake: When Robert gets up in the morning to deal with the pest problem he has facial stubble, but when he gets outside after chasing Nancy in his pyjamas, he is nearly clean shaven. When he goes back to the apartment his heavy stubble is back again.
Continuity mistake: When Giselle tosses the sword and the tip catches Robert's sleeve below the cuff, in the following shots the position of its point through the sleeve keeps differing. Then, after Robert loses his grip and Giselle breaks his fall, as they both start to slide Robert's sleeve is intact, but in the next shot the entire sleeve suddenly disappears. (01:34:25)
Factual error: At the Kings and Queens Ball, the bandleader announces that the next dance will be a waltz, which are, by definition, played in 3/4 time. However the tune that is played is clearly in 4/4 time and thus is not a waltz.
Other mistake: In his search of Giselle, when Edward knocks on doors 209 (hissing cat), 405 (barking dog), and 714 (purple guy), the funny thing is that in all three close-ups the three door jambs/trim have the same paint glob markings. The actual doors were changed, but the jamb/trim remained the same for all three shots. (Only visible on widescreen DVD). (01:04:05)
Continuity mistake: The first time we see Robert with the arguing couple, the woman puts her finger to the side of her head in a side-on shot of her, and in the next (a more front-on shot) her hand is suddenly on the table.
Continuity mistake: During the cleanup, when Giselle opens the center French doors and stands on the balcony to sing, the window she sang from earlier is directly beside the balcony, to the right. The problem here is, in the interior shots there is a wall that is about 7-8 ft wide, between the French doors and window, where the couch is. (00:27:10)
Continuity mistake: During her first morning at Robert's apartment, Giselle has made a gown out of the living room draperies, but the remaining drapes on the windows are a very faded turquoise floral and the color of Giselle's dress material is a bright turquoise floral, which is actually more similar in color to the lamp on the table. (00:32:00)
Continuity mistake: As Robert drops from the bent spike, he hits the roof and both he and Giselle are sliding down the side of it. In the shot viewing from above Robert can be seen reaching some kind of ledge on the roof, while Giselle is 1-2 meters above him, also sliding towards the ledge. In the next two shoots (1st from the side, 2nd from below of them) both of them are still sliding down the roof with the ledge no where to be seen. (01:31:15)