if it 's filmed tosca that you want 
(ROOT (SBAR (IN if) (S (NP (PRP it)) (VP (VBZ 's) (VP (VBN filmed) (NP (NP (NN tosca)) (SBAR (WHNP (WDT that)) (S (NP (PRP you)) (VP (VBP want))))))))))
(ROOT (SBAR (IN ) (S (NP (PRP )) (VP (VBZ ) (VP (VBN ) (NP (NP (NN )) (SBAR (WHNP (WDT )) (S (NP (PRP )) (VP (VBP ))))))))))