that extra little something that makes it worth checking out at theaters 
(ROOT (PP (IN that) (NP (NP (JJ extra) (JJ little) (NN something)) (SBAR (WHNP (WDT that)) (S (VP (VBZ makes) (S (NP (PRP it)) (PP (JJ worth) (S (VP (VBG checking) (PRT (RP out)) (PP (IN at) (NP (NNS theaters)))))))))))))
(ROOT (PP (IN ) (NP (NP (JJ ) (JJ ) (NN )) (SBAR (WHNP (WDT )) (S (VP (VBZ ) (S (NP (PRP )) (PP (JJ ) (S (VP (VBG ) (PRT (RP )) (PP (IN ) (NP (NNS )))))))))))))