give them credit for : the message of the movie 
(ROOT (S (VP (VB give) (NP (PRP them)) (NP (NP (NN credit)) (PP (IN for) (: :) (NP (NP (DT the) (NN message)) (PP (IN of) (NP (DT the) (NN movie)))))))))
(ROOT (S (VP (VB ) (NP (PRP )) (NP (NP (NN )) (PP (IN ) (: ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (DT ) (NN )))))))))