The big thing that makes "The Godfather" so great is the fact that it doesn't try to do too much story-wise. It was an exercise in restraint and it allows the viewer to get to know the characters.
"I like simple pleasures like butter in my ass and lollipops in my mouth." - Floyd Gondolli

I also think The Godfather is overrated - it is not a bad film but I don't think it deserves the praise it has been given. This film, The Good Neighbor, was better than I expected. But the two films are not comparable. Caan is a great actor and, to a point, doesn't get the recognition he deserves.

Highly overrated? You have got be kidding me?

Only a complete moron would confuse "not have seen" with "never heard of".

only complete morons have never heard of The Godfather

First time I watched it, I thought the same thing. I found it boring, and overrated. I kept seeing it high on #1 lists, and couldn't figure out why. Then I read the book and it made the movie incredible.

It's a pretty old movie by now. Not everybody today has seen it or know about it.
It's highly overrated in my opinion.