I went to Circle several years ago (mid 70's) and I must say that it was the best training in my life, short of actual stage experience. The program covered voice, dance, stage movement, etc. with emphasis on scene study. I had two teachers in Scene Study who were both marvelous -- Madeleine Thornton Sherwood (formerly Sister Woman in CAT and Mother Superior in THE FLYING NUN) and Nikos Psychauraupolos, the Artistic Director of the famed Williamstown Theatre Festival. They were very different teachers -- Madeleine was the earth mother who nurtured your talent and Nikos was the taskmaster. Whenever I have a forced or false moment onstage, I can still hear Nikos' Greek accent chiming in with, "I don't believe it!!" God rest his soul.
Ah, I digress. Suffice it to say, I recommend the school.
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Brook Arts Center closed due to flooding from April 2007 Nor'easter. Watch www.brookarts.org for more info.