this film always keeping the balance between the fantastic and the believable 
(ROOT (S (NP (DT this) (NN film)) (ADVP (RB always)) (VP (VBG keeping) (NP (NP (DT the) (NN balance)) (PP (IN between) (NP (NP (DT the) (JJ fantastic)) (CC and) (NP (DT the) (JJ believable))))))))
(ROOT (S (NP (DT ) (NN )) (ADVP (RB )) (VP (VBG ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NP (DT ) (JJ )) (CC ) (NP (DT ) (JJ ))))))))