Run Lola Run of course is all form and zero content, but when I saw it, that was fine by me. I don't think it's merely an MTV clip, but of course calling it the best of 1999 is somewhat over the top. It succeeds in what it set out to do, however limited its goals were; in that it is well made and in my view very enjoyable movie.
I don't know about "the best", but THE movie experience of 1999 for me was "Fight Club".