, much about the film , including some of its casting , is frustratingly unconvincing . 
(ROOT (S (, ,) (NP (NP (JJ much)) (PP (IN about) (NP (DT the) (NN film))) (, ,) (PP (VBG including) (NP (NP (DT some)) (PP (IN of) (NP (PRP$ its) (NN casting))))) (, ,)) (VP (VBZ is) (ADJP (RB frustratingly) (JJ unconvincing))) (. .)))
(ROOT (S (, ) (NP (NP (JJ )) (PP (IN ) (NP (DT ) (NN ))) (, ) (PP (VBG ) (NP (NP (DT )) (PP (IN ) (NP (PRP$ ) (NN ))))) (, )) (VP (VBZ ) (ADJP (RB ) (JJ ))) (. )))