Remakes of flops actually make sense. It's remaking classics that are unnecessary and usually disasterous.
Remaking little known movies works in that way. No one's attached to them quite as much, no one cares, and someone could actually do the project better. Michael Cain actually went on CBS Sunday Morning and said this. Remake flops, and they'll be successful.
Exactly, the key word there is rare. Meanwhile the majority of remakes suck up all the attention from the originals, regarding of quality.
The problem with most remakes is that they miss the point of the movie entirely and just either copy it with disastrous results or update it and throw everything special about the movie out the window. There's never quite an understanding of the context because context
is a personal thing. Yet, I do like when they "remake" movies that were based on books and they actually get the details of the book right the second time, because the first director wanted to break out and do something original. Personally, I wanna see someone do a GOOD version of Charlie and the Chocolate Factory. Preferably stop motion animated. (that's right... I don't care much for either version).
But then you have something special on those rare occasions. The Musical version of The Producers, for example. That was so much more successful than the original movie, and almost better known. It was a great movie, a bit dated with the Hippie references, though... but Mel Brooks was able to take his old film, change a few slight details (for the better... I like gay Hitler better than Hippie Hitler), add more musical numbers, and had a multimillion dollar Broadway hit. Of course, the major difference was that the tickets for the movie were like however much it was at that time vs. several hundred per Broadway ticket. My only complaint about the Movie version was that they trimmed the heck out of everything to fit the 2 hours or less crap. It really should have been longer and had more musical numbers.