The idea behind “Hot Tub TIme Machine”:Four friends find out they can go back in time through a hot tub. Yes,its beyond ridiculous as a concept,but it as John Cusack,Lizzy Caplan,Craig Robinson and wait for it,Chevy Chase! How can it be wrong? How can something this right be wrong? Oh right it can’t be wrong,just absolutely awesome. Enjoy the first red-band trailer for this film that wont hit theaters for another eight months.