going to make his debut as a film director 
(ROOT (S (VP (VBG going) (S (VP (TO to) (VP (VB make) (NP (PRP$ his) (NN debut)) (PP (IN as) (NP (DT a) (NN film) (NN director)))))))))
(ROOT (S (VP (VBG ) (S (VP (TO ) (VP (VB ) (NP (PRP$ ) (NN )) (PP (IN ) (NP (DT ) (NN ) (NN )))))))))