all the filmmakers need to do 
(ROOT (NP (WHNP (PDT all)) (SBAR (S (NP (DT the) (NNS filmmakers)) (VP (VBP need) (S (VP (TO to) (VP (VB do)))))))))
(ROOT (NP (WHNP (PDT )) (SBAR (S (NP (DT ) (NNS )) (VP (VBP ) (S (VP (TO ) (VP (VB )))))))))