it uses some of the figures from the real-life story to portray themselves in the film . 
(ROOT (S (NP (PRP it)) (VP (VBZ uses) (NP (NP (DT some)) (PP (IN of) (NP (NP (DT the) (NNS figures)) (PP (IN from) (NP (DT the) (NML (JJ real) (HYPH -) (NN life)) (NN story)))))) (S (VP (TO to) (VP (VB portray) (NP (PRP themselves)) (PP (IN in) (NP (DT the) (NN film))))))) (. .)))
(ROOT (S (NP (PRP )) (VP (VBZ ) (NP (NP (DT )) (PP (IN ) (NP (NP (DT ) (NNS )) (PP (IN ) (NP (DT ) (NML (JJ ) (HYPH ) (NN )) (NN )))))) (S (VP (TO ) (VP (VB ) (NP (PRP )) (PP (IN ) (NP (DT ) (NN ))))))) (. )))