Is it a Godfather? Patton? Hell Forrest Gump? They are good, but still waitng for the next great classic.
Well, you are setting the bar pretty high, but there are several movies on my list that I'd rewatch before any of those three -- perhaps because I've rewatched Godfather, Patton and Forrest Gump enough times in past years, long before streaming tv came along, to basically have them memorized.
Godfather II and III, by the way, don't do anything for me. I'm becoming sequel intolerant in my old age.
At this point, I will rarely rewatch an entire movie more than once or twice, if that. I have a pretty retentive memory, and I don't need to sit through long expositions of a story I already know. What I will do, however, is skip through a movie and rewatch the great scenes. That's where the magic of movies is found, and streamed movies are perfect for this. Or I'll break them up and rewatch over two or three evenings, the way I'd reread a good book.
Movies are like poetry. We read poetry for the perfect line, the line of such crystalline clarity and beauty that it leaves us stunned. The problem is that one has to read through so much filler to get to the great lines scattered about. The overburden to ore ratio is too high.
That's why I've always thought the best book of poetry is Bartlett's Famous Quotations. But to appreciate the great line in Bartlett's, one does need to have read the poem at least once for context. For most poems, once is enough, but the great line or verse can be recalled with pleasure innumerable times. Great scenes in movies are like that.