aimless for much of its running time , until late in the film when a tidal wave of plot arrives 
(ROOT (S (ADJP (JJ aimless)) (PP (IN for) (NP (NP (JJ much)) (PP (IN of) (NP (PRP$ its) (NN running) (NN time))))) (, ,) (PP (IN until) (NP (ADVP (RB late) (PP (IN in) (NP (DT the) (NN film)))) (SBAR (WHADVP (WRB when)) (S (NP (NP (DT a) (JJ tidal) (NN wave)) (PP (IN of) (NP (NN plot)))) (VP (VBZ arrives))))))))
(ROOT (S (ADJP (JJ )) (PP (IN ) (NP (NP (JJ )) (PP (IN ) (NP (PRP$ ) (NN ) (NN ))))) (, ) (PP (IN ) (NP (ADVP (RB ) (PP (IN ) (NP (DT ) (NN )))) (SBAR (WHADVP (WRB )) (S (NP (NP (DT ) (JJ ) (NN )) (PP (IN ) (NP (NN )))) (VP (VBZ ))))))))