for a film that has nothing 
(ROOT (PP (IN for) (NP (NP (DT a) (NN film)) (SBAR (WHNP (WDT that)) (S (VP (VBZ has) (NP (NN nothing))))))))
(ROOT (PP (IN ) (NP (NP (DT ) (NN )) (SBAR (WHNP (WDT )) (S (VP (VBZ ) (NP (NN ))))))))