are what makes it worth the trip to the theater . 
(ROOT (S (VP (VBP are) (SBAR (WHNP (WP what)) (S (VP (VBZ makes) (S (NP (PRP it)) (ADJP (JJ worth) (NP (NP (DT the) (NN trip)) (PP (IN to) (NP (DT the) (NN theater)))))))))) (. .)))
(ROOT (S (VP (VBP ) (SBAR (WHNP (WP )) (S (VP (VBZ ) (S (NP (PRP )) (ADJP (JJ ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (DT ) (NN )))))))))) (. )))