In the police van, one of the ladies draws a thin mustache above Jack Lemmon's right upper lip. In the next shot it is gone.
When Nestor changes into his old uniform to elude detection, he still has the ribbon he was awarded for saving a child's life, even though he previously had said it was taken from him when he was kicked off the police force.
When Nestor and Irma first meet, Nestor says he received a medal for performing 'mouth-to-mouth respiration' on a drowning child. This is another term for 'mouth-to-mouth resuscitation'.
When Irma goes to throw Nestor out after he climbs in the window, she lays out "what ya came with" - his policeman's uniform. He was fired as a policeman before they became involved.
However, he came to Irma with his suitcase, which contained his uniform and toilet kit, as revealed when Irma opens it the next morning.
However, he came to Irma with his suitcase, which contained his uniform and toilet kit, as revealed when Irma opens it the next morning.
Jack Lemon's character told the police Desk Segreant that 16 gals were delivered to the lock up. But 21 (beautiful) gals, including Irma, exited the paddy wagon and walked into the police station..
Music in a large Catholic cathedral is always played on the magnificent pipe organ, but the organ heard during the wedding emanates from a cheap model of electronic home organ.
The shadow of the boom mic can be seen on the brown wall to the right of the screen just after Nestor shows up in Irma's apartment following his jailbreak. It shows up behind Lefevre just after Irma's sarcastic remark that Nestor can be found in jail.