at 90 minutes this movie is short 
(ROOT (S (PP (IN at) (NP (CD 90) (NNS minutes))) (NP (DT this) (NN movie)) (VP (VBZ is) (ADJP (JJ short)))))
(ROOT (S (PP (IN ) (NP (CD ) (NNS ))) (NP (DT ) (NN )) (VP (VBZ ) (ADJP (JJ )))))