The Pool , a 2007 slasher/thriller movie released on 1/1/2007 starring Isla Fisher, James McAvoy, Kristen Miller, Elena Uhlig, Paul T. Grasshoff, Cordelia Bugeja, Maximilian Grill, Anna Geislerová, Linda Rybová, Jonah Lotan, Jan Vlasák, Marek Libert, John Hopkins, produced by Kate Noble. A masked killer slaughters young people having a party at a fancy gymnasium..