Tara Reid and Ian Ziering's cult Tv disaster film Sharknado is set to attack movie theatres for one night only - the Syfy network hit will be screened during special midnight showings at 200 Regal locations across America on 2 August (13). The disaster epic, about a violent storm which rains down vicious sharks on Los Angeles, became a phenomenon on social networking websites after it aired on U.S. Tv earlier this month (Jul13). A sequel has already been announced.