Other mistake: During the scene where Charlie is watching the horror movie on TV and Viola sneaks up behind her wearing the costume with the long finger nails and scares her. They show a shot from Viola's point of view and you see Charlie sitting on the couch from the back, but the TV is not on.
Monster-in-Law (2005)
Ending / spoiler
Directed by: Robert Luketic
Starring: Jennifer Lopez, Jane Fonda, Michael Vartan, Wanda Sykes
Charlie almost decides not to go through with the wedding after seeing Viola fighting with her mother-in-law and seeing that they will be fighting just like that in the coming years. Viola talks to Charlie and Charlie gets married to Kevin. While Charlie & Kevin leave for their honeymoon, Viola & Ruby go on vacation.
~|| Tru~
More mistakes in Monster-in-Law
Ruby: Charlie's face will blow up like a balloon.
Viola Fields: Good, then it will match the rest of her body.
Question: What was the deal with Dr. Chamberlain? Was he not a real doctor and just a waiter? Or was he possibly a temp and had more than one job?
Answer: He was actually a waiter that Viola paid/bribed to pretend to be a doctor.
Torie White