the most surprising thing about this film 
(ROOT (NP (NP (DT the) (ADJP (RBS most) (JJ surprising)) (NN thing)) (PP (IN about) (NP (DT this) (NN film)))))
(ROOT (NP (NP (DT ) (ADJP (RBS ) (JJ )) (NN )) (PP (IN ) (NP (DT ) (NN )))))