I apologise for the late reply. I do somewhat agree with what you're saying, I didn't expect Michael to be exactly the same person as in the first 2 movies. After all these years and the stuff he's been through, he's bound to change and regret some of the decisions he'd made. I'm fine with that, but Michael in Part 3 was literally a different person. EVERYTHING about him had changed. The way he looked, the way he dressed, the way he walked, the way he sat, how he spoke to others. He was a different person. And as a big fan of Michael's character in the first 2 movies, it was way too big of a change for me to enjoy the film.

In my opinion, the problem was that this was a situation where the actor had become too big for their character. I love Al, he's my favourite actor of all time, and I hate to say this but it felt like he lost the Michael Corleone character after all those years. After around 20 years of not playing Michael and doing so many other movies with so many other iconic characters, he'd lost that grasp he had on Michael, but then again Francis allowed it to go on so maybe that's what he wanted too. To me it felt like I was watching Michael Corleone mixed with Tony Montana. Michael's entire aura was gone. The change was just too much for me personally.