the best thing about the movie is its personable , amusing cast . 
(ROOT (S (NP (NP (DT the) (JJS best) (NN thing)) (PP (IN about) (NP (DT the) (NN movie)))) (VP (VBZ is) (NP (PRP$ its) (JJ personable) (, ,) (JJ amusing) (NN cast))) (. .)))
(ROOT (S (NP (NP (DT ) (JJS ) (NN )) (PP (IN ) (NP (DT ) (NN )))) (VP (VBZ ) (NP (PRP$ ) (JJ ) (, ) (JJ ) (NN ))) (. )))