EW's Special Coverage  Sex and the City   Remake Waves  ''The
Poseidon Adventure'' gets remade twice -- The 1972 disaster
flick is being redone by both NBC and Warner Bros.  Just how
many times can one ship sink? The answer in Hollywood these days
is three.  On May 16, NBC announced that its 2005-06 TV schedule
will be anchored in part by an update of 1972's disaster-movie
classic The Poseidon Adventure. This came soon after Warner
Bros. (a division of EW parent Time Warner), director Wolfgang
Petersen, and reality TV maestro Mike Fleiss announced that they
were prepping their own remake, due next summer on the big
screen.  Is the ocean big enough for both boats? ''Sure,'' says
NBC Universal's Jeff Gaspin, who bought his Hallmark
Entertainment-produced film in March in order to build on the
success of last year's TV disaster hit 10.5. (Hallmark holds the
TV remake rights to the original book, while Warner Bros., which
produced 1979's feature Beyond the Poseidon Adventure, has movie
privileges.) ''These movies