neither the funniest film that eddie murphy nor robert de niro has ever made , showtime is nevertheless efficiently amusing for a good while . 
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(ROOT (NP (CC ) (NP (NP (DT ) (JJS ) (NN )) (SBAR (WHNP (WDT )) (S (NP (NP (NNP ) (NNP )) (CC ) (NP (NNP ) (NNP ) (NNP ))) (VP (VBZ ) (ADVP (RB )) (VP (VBN )))))) (, ) (NP (NN )) (VP (VBZ ) (ADVP (RB )) (ADJP (RB ) (JJ )) (PP (IN ) (NP (DT ) (JJ ) (NN )))) (. )))