looking like a bunch of talented thesps slumming it 
(ROOT (S (VP (VBG looking) (PP (IN like) (NP (NP (NP (DT a) (NN bunch)) (PP (IN of) (NP (JJ talented) (NNS thesps)))) (VP (VBG slumming) (NP (PRP it))))))))
(ROOT (S (VP (VBG ) (PP (IN ) (NP (NP (NP (DT ) (NN )) (PP (IN ) (NP (JJ ) (NNS )))) (VP (VBG ) (NP (PRP ))))))))