if the film fails to fulfill its own ambitious goals 
(ROOT (SBAR (IN if) (S (NP (DT the) (NN film)) (VP (VBZ fails) (S (VP (TO to) (VP (VB fulfill) (NP (PRP$ its) (JJ own) (JJ ambitious) (NNS goals)))))))))
(ROOT (SBAR (IN ) (S (NP (DT ) (NN )) (VP (VBZ ) (S (VP (TO ) (VP (VB ) (NP (PRP$ ) (JJ ) (JJ ) (NNS )))))))))