it 's usually a bad sign when directors abandon their scripts and go where the moment takes them , 
(ROOT (S (NP (PRP it)) (VP (VBZ 's) (ADVP (RB usually)) (NP (DT a) (JJ bad) (NN sign)) (SBAR (WHADVP (WRB when)) (S (NP (NNS directors)) (VP (VP (VBP abandon) (NP (PRP$ their) (NNS scripts))) (CC and) (VP (VBP go) (SBAR (WHADVP (WRB where)) (S (NP (DT the) (NN moment)) (VP (VBZ takes) (NP (PRP them)))))))))) (, ,)))
(ROOT (S (NP (PRP )) (VP (VBZ ) (ADVP (RB )) (NP (DT ) (JJ ) (NN )) (SBAR (WHADVP (WRB )) (S (NP (NNS )) (VP (VP (VBP ) (NP (PRP$ ) (NNS ))) (CC ) (VP (VBP ) (SBAR (WHADVP (WRB )) (S (NP (DT ) (NN )) (VP (VBZ ) (NP (PRP )))))))))) (, )))