The first thing I noticed when I first saw GFIII was the almost same story lines and scenes from the past two films. I thought it might be interesting to list the ones that some have noticed, such as:

-Joey Zasa and Don Barzini both assassinated by someone posing as a cop.

-Joey Zasa and Don Fannucci both assassinated during a religious parade.

-All started with a religious event, and had picture taking ceremonies.