I believe the whole helicopter scene was a shameful piece of film that should have been reconstructed entirely.

During the massacre itself, the film lowered itself to B-movie quality with the ludicrous "lucky coat" bit. I was laughing so hysterically over the delivery of the "Zasa, you son-of-a-bitch" line by one bloodied gangster that I did not even notice the Neri issue on the first watch. I honestly couldn't believe Coppola left such silliness and cheesiness in a movie meant to portray life and death.