Nick is wearing a three piece suit when he goes to the seminar, but when he wakes up after the accident, he is only wearing a two piece suit. Not the vest. Nick tried to put on the vest when he was hurrying to leave his apartment. It was too difficult so he throws it aside.
In the movie, the building disintegrates because the invisibility effect makes the physical matter unstable. The same effect doesn't apply to Nick or the clothing and objects he is carrying.
When Nick wants to be seen, he wraps outer clothing over himself. But, when Nick is not trying to be visible, he still wears clothing in the movie, yet he cannot be seen. It would be impossible to avoid being seen when wearing some types of clothing, yet be seen wearing other types.
Except for the clothes that were made invisible in the same accident that made him invisible.
Except for the clothes that were made invisible in the same accident that made him invisible.
The role of Maitre D' is listed as "Maitre'd" (a common mistake) in the credits.
When Nick is holding the gun to Jenkins' head, he pulls the hammer back but the trigger doesn't move. In fact, the trigger is already in the firing position before Nick cocks the hammer.
An invisible man would be blind, the only way to see is for light to reflect off the back of the retina. If the retina is invisible the light would pass through. In the book, it was theorized that the energy particles that make up his body interact differently with visible light allowing him to see.
When Nick is eating dinner with Alice, he is wearing make-up, goggles, and a wig to disguise his invisibility. However, you can also see his tongue when he is talking. Making his tongue visible does not seem likely, nor was it established.
Nick often casts a shadow.
Nick's reflection in the gas station window
In a scene where Chevy Chase is smoking a cigarette, the smoke is shown going in and out of his lungs. He is speaking at the same time that he inhales the smoke.
When Nick calls Alice to the gray beach house, while Nick is smoking (the 2nd puff/inhale) he starts talking while the smoke is still being inhaled into his lungs.
The first column of names in the alphabetical list of stunt credits ends with Alan Oliney, who is also credited at the top of the second column.
In Jenkins office when Nick punches Jenkins, Sam Neill flinches well before he's punched.
In the congressional hearing, Jenkings is asked a question in connection with "IG Farben" in Germany. A powerful industrial conglomerate of Nazi Germany, IG Farben was put into liquidation after the end of the second world war and split up into several successor companies such as AGFA, Bayer and BASF. As a legal entity, its continued existence was basically just a technicality until the liquidation was finally completed in 2012. It did not have any actual business dealings etc.
Most of the movie is told via flashback, with Nick narrating it on his video confessional. But how would he know about events that took place without him being present, such as Dr. Wachs's murder or how the building accident occurred in the first place?