even before it builds up to its insanely staged ballroom scene , in which 3000 actors appear in full regalia , it 's waltzed itself into the art film pantheon . 
(ROOT (S (SBAR (ADVP (RB even)) (IN before) (S (NP (PRP it)) (VP (VBZ builds) (PRT (RP up)) (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))))))))))) (, ,) (NP (PRP it)) (VP (VBZ 's) (VP (VBN waltzed) (NP (PRP itself)) (PP (IN into) (NP (DT the) (NML (NN art) (NN film)) (NN pantheon))))) (. .)))
(ROOT (S (SBAR (ADVP (RB )) (IN ) (S (NP (PRP )) (VP (VBZ ) (PRT (RP )) (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 ))))))))))) (, ) (NP (PRP )) (VP (VBZ ) (VP (VBN ) (NP (PRP )) (PP (IN ) (NP (DT ) (NML (NN ) (NN )) (NN ))))) (. )))