is the central flaw of the film 
(ROOT (VP (VBZ is) (NP (NP (DT the) (JJ central) (NN flaw)) (PP (IN of) (NP (DT the) (NN film))))))
(ROOT (VP (VBZ ) (NP (NP (DT ) (JJ ) (NN )) (PP (IN ) (NP (DT ) (NN ))))))