Sharknado 4 : The 4th Awakens , the latest installment of Syfy Channels â leading mock horror movie franchise Sharknado , will make its debut on Sunday , July 31 , at 8 : 00 p.m. and as promised , the flick features a huge list of cast and cameo appearances , an odd tie-in with Star Wars , the revelation if April Wexler survived Sharknado 3 , a ...