, you 'll wait in vain for a movie to happen . 
(ROOT (S (, ,) (NP (PRP you)) (VP (MD 'll) (VP (VB wait) (PP (IN in) (NP (NN vain))) (SBAR (IN for) (S (NP (DT a) (NN movie)) (VP (TO to) (VP (VB happen))))))) (. .)))
(ROOT (S (, ) (NP (PRP )) (VP (MD ) (VP (VB ) (PP (IN ) (NP (NN ))) (SBAR (IN ) (S (NP (DT ) (NN )) (VP (TO ) (VP (VB ))))))) (. )))