to its insanely staged ballroom scene , in which 3000 actors appear in full regalia 
(ROOT (PP (IN to) (NP (NP (PRP$ its) (ADJP (RB insanely) (VBN staged)) (NN ballroom) (NN scene)) (, ,) (SBAR (WHPP (IN in) (WHNP (WDT which))) (S (NP (CD 3000) (NNS actors)) (VP (VBP appear) (PP (IN in) (NP (JJ full) (NN regalia)))))))))
(ROOT (PP (IN ) (NP (NP (PRP$ ) (ADJP (RB ) (VBN )) (NN ) (NN )) (, ) (SBAR (WHPP (IN ) (WHNP (WDT ))) (S (NP (CD ) (NNS )) (VP (VBP ) (PP (IN ) (NP (JJ ) (NN )))))))))