dopey dialogue and sometimes inadequate performances kill the effect 
(ROOT (S (NP (NP (JJ dopey) (NN dialogue)) (CC and) (NP (ADJP (RB sometimes) (JJ inadequate)) (NNS performances))) (VP (VBP kill) (NP (DT the) (NN effect)))))
(ROOT (S (NP (NP (JJ ) (NN )) (CC ) (NP (ADJP (RB ) (JJ )) (NNS ))) (VP (VBP ) (NP (DT ) (NN )))))