the film lacks momentum and its position remains mostly undeterminable 
(ROOT (S (S (NP (DT the) (NN film)) (VP (VBZ lacks) (NP (NN momentum)))) (CC and) (S (NP (PRP$ its) (NN position)) (VP (VBZ remains) (ADJP (RB mostly) (JJ undeterminable))))))
(ROOT (S (S (NP (DT ) (NN )) (VP (VBZ ) (NP (NN )))) (CC ) (S (NP (PRP$ ) (NN )) (VP (VBZ ) (ADJP (RB ) (JJ ))))))