My problem with 3 is that it is a rehash of the previous two scripts in many places. It makes the whole movie seem like one big cliche.

It seems like a lot of things were done just for effect, such as: Johnny Fontane was in a scene, but why? It contributed nothing to the plot to have Fontane in there, he was just there so people could say "Hey there's Johnny from the original movie."

Just one of many examples of how this movie was made just for money.