the interior lives of the characters in his film 
(ROOT (NP (NP (DT the) (NN interior) (NNS lives)) (PP (IN of) (NP (NP (DT the) (NNS characters)) (PP (IN in) (NP (PRP$ his) (NN film)))))))
(ROOT (NP (NP (DT ) (NN ) (NNS )) (PP (IN ) (NP (NP (DT ) (NNS )) (PP (IN ) (NP (PRP$ ) (NN )))))))