that the film 's length becomes a part of its fun 
(ROOT (SBAR (IN that) (S (NP (NP (DT the) (NN film) (POS 's)) (NN length)) (VP (VBZ becomes) (NP (NP (DT a) (NN part)) (PP (IN of) (NP (PRP$ its) (NN fun))))))))
(ROOT (SBAR (IN ) (S (NP (NP (DT ) (NN ) (POS )) (NN )) (VP (VBZ ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (PRP$ ) (NN ))))))))