becomes more and more frustrating as the film goes on 
(ROOT (VP (VBZ becomes) (ADJP (ADJP (RBR more) (CC and) (RBR more)) (JJ frustrating)) (SBAR (IN as) (S (NP (DT the) (NN film)) (VP (VBZ goes) (PRT (RP on)))))))
(ROOT (VP (VBZ ) (ADJP (ADJP (RBR ) (CC ) (RBR )) (JJ )) (SBAR (IN ) (S (NP (DT ) (NN )) (VP (VBZ ) (PRT (RP )))))))