The made-for-TV movie "Sharknado" debuted on the SyFy channel this summer. The plot? A powerful tornado inundates Los Angeles with shark infested seawater with predictably disastrous results. The film begged for a parody and Hollywood has answered with a trailer introduced on Halloween on the "Live With Kelly and Michael" show.

Cher, Robert DeNiro, Kelly Ripa and others joined the fun.

As if earthquakes and mudslides weren't enough for Los Angelenos to worry about!