Visible crew/equipment: When Jackie is climbing out of the building that is attacked, in the shot from below him as he's climbing back onto the plank, you can easily see a wire holding him.
Mr. Nice Guy (1987)
1 visible crew/equipment mistake - chronological order
Directed by: Henry Wolfond
Starring: Jackie Chan, Harvey Atkin, Jan Smithers, Mike MacDonald, Joe Silver
Genres: Comedy
Revealing mistake: When being chased down the street and Jackie is in the horse carriage, he throws a guy through a window. You can see the glass has been pre shattered and therefore easier to break.
Trivia: The biker that gets hit by the Devil driver, then later gets to beat him up is the film's director, Samo Huny.
Question: Was the ice-cream man in 'Mr. Nice Guy' the same ice-cream man who is seen briefly in the park in 'Rumble in the Bronx'?
Answer: Yes. His name is Emil Chau. http://www.imdb.com/name/nm0154235/. Such questions can usually be answered using The Internet Movie Database http://www.imdb.com.