sex is one of those films that aims to confuse . 
(ROOT (S (NP (NN sex)) (VP (VBZ is) (NP (NP (CD one)) (PP (IN of) (NP (NP (DT those) (NNS films)) (SBAR (WHNP (WDT that)) (S (VP (VBZ aims) (S (VP (TO to) (VP (VB confuse))))))))))) (. .)))
(ROOT (S (NP (NN )) (VP (VBZ ) (NP (NP (CD )) (PP (IN ) (NP (NP (DT ) (NNS )) (SBAR (WHNP (WDT )) (S (VP (VBZ ) (S (VP (TO ) (VP (VB ))))))))))) (. )))