are dampened by a lackluster script and substandard performances 
(ROOT (VP (VBP are) (VP (VBN dampened) (PP (IN by) (NP (NP (DT a) (JJ lackluster) (NN script)) (CC and) (NP (JJ substandard) (NNS performances)))))))
(ROOT (VP (VBP ) (VP (VBN ) (PP (IN ) (NP (NP (DT ) (JJ ) (NN )) (CC ) (NP (JJ ) (NNS )))))))