if the film has a problem , its shortness disappoints : you want the story to go on and on . 
(ROOT (S (S (SBAR (IN if) (S (NP (DT the) (NN film)) (VP (VBZ has) (NP (DT a) (NN problem))))) (, ,) (NP (PRP$ its) (NN shortness)) (VP (VBZ disappoints))) (: :) (S (NP (PRP you)) (VP (VBP want) (S (NP (DT the) (NN story)) (VP (TO to) (VP (VB go) (ADVP (RB on) (CC and) (RB on))))))) (. .)))
(ROOT (S (S (SBAR (IN ) (S (NP (DT ) (NN )) (VP (VBZ ) (NP (DT ) (NN ))))) (, ) (NP (PRP$ ) (NN )) (VP (VBZ ))) (: ) (S (NP (PRP )) (VP (VBP ) (S (NP (DT ) (NN )) (VP (TO ) (VP (VB ) (ADVP (RB ) (CC ) (RB ))))))) (. )))