While I may not like Ariadne Oliver's portrayal in a haunting in Venice, I did really like the character that we got.
Now I am very torn on this as Ariadne Oliver is on of my favourite character in the Poirot books, so I didn't really appreciate what they did to her in a haunting in Venice but I did like the character we got. Maybe it would have just been fix if they gave her a new name in the film so it's more easy to tell that this is a new character