There is a difference between an adaption and a remake and what is more you should only do a remake if the original was lacking in some way and I have yet to see any proof that any director in Holywood can one up Hitchcock.

As for the remake of The man who knew too much,everyone makes at least one mistake if they work on movies as long as Hitchcock did and that was his. The original didn't have a thing wrong with it and it's pace was nice and tight. Remaking it just to use colour and big name stars was a bad idea and didn't work.

This idea that every movie should be a remake of an older movie and making new movies or adapting books that haven't been made into films before is some how wrong is what is killing Hollywood and is the biggest reason I rarely go to the movies any more. Nothing creative or original gets released any more.