Charlie Chan was a fictional character created by author Earl Derr Biggers and loosely based upon Honolulu detective Chang Apana…
Murder Over New York
When Charlie's old friend from Scotland Yard is murdered when they attend a police convention in New York, Chan picks up the case he was working on.
Charlie Chan visit New York and manage to do some spy hunting and murder solving. Still works nicely.
Another murder mystery with Charlie Chan and his son.
More wartime paranoia mucks up this lesser Chan film as he traces the death of a police officer to a saboteur ring using gas pellets to knock out pilots.
All the Black & White movies I've seen.