the depths to which the girls-behaving-badly film has fallen 
(ROOT (NP (NP (DT the) (NNS depths)) (SBAR (WHPP (IN to) (WHNP (WDT which))) (S (NP (DT the) (NNS girls)) (HYPH -) (VP (VBG behaving) (HYPH -) (ADVP (RB badly))) (NP (NN film)) (VP (VBZ has) (VP (VBN fallen)))))))
(ROOT (NP (NP (DT ) (NNS )) (SBAR (WHPP (IN ) (WHNP (WDT ))) (S (NP (DT ) (NNS )) (HYPH ) (VP (VBG ) (HYPH ) (ADVP (RB ))) (NP (NN )) (VP (VBZ ) (VP (VBN )))))))