a huge disappointment coming , as it does , from filmmakers and performers of this calibre 
(ROOT (S (NP (DT a) (JJ huge) (NN disappointment)) (VP (VBG coming) (, ,) (SBAR (IN as) (S (NP (PRP it)) (VP (VBZ does)))) (, ,) (PP (IN from) (NP (NP (NNS filmmakers) (CC and) (NNS performers)) (PP (IN of) (NP (DT this) (NN calibre))))))))
(ROOT (S (NP (DT ) (JJ ) (NN )) (VP (VBG ) (, ) (SBAR (IN ) (S (NP (PRP )) (VP (VBZ )))) (, ) (PP (IN ) (NP (NP (NNS ) (CC ) (NNS )) (PP (IN ) (NP (DT ) (NN ))))))))