an energetic , violent movie with a momentum that never lets up . 
(ROOT (NP (NP (DT an) (JJ energetic) (, ,) (JJ violent) (NN movie)) (PP (IN with) (NP (NP (DT a) (NN momentum)) (SBAR (WHNP (WDT that)) (S (ADVP (RB never)) (VP (VBZ lets) (PRT (RP up))))))) (. .)))
(ROOT (NP (NP (DT ) (JJ ) (, ) (JJ ) (NN )) (PP (IN ) (NP (NP (DT ) (NN )) (SBAR (WHNP (WDT )) (S (ADVP (RB )) (VP (VBZ ) (PRT (RP ))))))) (. )))