the movie eventually snaps under the strain of its plot contrivances and its need to reassure . 
(ROOT (S (NP (DT the) (NN movie)) (ADVP (RB eventually)) (VP (VBZ snaps) (PP (IN under) (NP (NP (DT the) (NN strain)) (PP (IN of) (NP (NP (PRP$ its) (NN plot) (NNS contrivances)) (CC and) (NP (PRP$ its) (NN need) (S (VP (TO to) (VP (VB reassure)))))))))) (. .)))
(ROOT (S (NP (DT ) (NN )) (ADVP (RB )) (VP (VBZ ) (PP (IN ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NP (PRP$ ) (NN ) (NNS )) (CC ) (NP (PRP$ ) (NN ) (S (VP (TO ) (VP (VB )))))))))) (. )))