Nope, it's by no means an accurate adaptation of Dumas' original work. Umm, does nanyone really care? Dumas' plot, while interesting in and of itself to many, is probably not one that many folks who think of "the Three Musketters" could actually _tell_ you.
This movie sets out to more or less capture the feel of such films, rather than the source material itself. In that regard, it's not too badly done. The characters are pretty broadly drawn, but adequate for the younger audience they're aimed at. Sutherland, Platt, and Sheen all seem way too young, but at least the first two are entertaining. Platt in particular manages to steal every scene he's in.
By the same token, Richelieu's character is simplified to "generic bad guy." The King and Queen seem too young as well (although they're represented age may be novelistically and/or historically accurate - again, could most folks really tell you, or care?).
Overall, I'd recommend the movie for some light entertainment, but don't take it too seriously.
