the source of its economy disappear with the arrival of an underhanded resort developer who's playing dirty with the town -- and the environment -- in "Shark Swarm," a Hallmark Channel Original Movie Event premiering Sunday, May 25 (8/7c). John Schneider, Daryl Hannah, Armand Assante and F. Murray Abraham star in the thriller that pits small town values against big-buck deceit -- and hundreds of man-eating sharks! ... Shark John Schneider Daryl Hannah Armand Assante Hallmark Channel tv trailer ...