The actor has to develop his body. The actor has to work on his voice. But the most important thing the actor has to work on is his mind.

The LA school continues to flourish as an acting studio and houses several theaters alumni of the Stella Adler-Los Angeles school include Mark Ruffalo Benicio Del Toro Brion James Salma Hayek Clifton Collins Jr. For instance if a character talks about horse riding one needs to know something about horse riding as an actor otherwise one will be faking.

Stella Adler (February 10 1901 – December 21 1992) was an American actress and an acclaimed acting teacher who founded the Stella Adler Studio of Acting in New York City (1949) and the The Stella Adler Academy of Acting in Los Angeles (1985) with long-time protégé Joanne Linville who continues to teach and furthers Adler's legacy. Irene Gilbert long-time protégé and close personal friend founded the Stella Adler Academy of Acting and Theatre in Los Angeles and was instrumental in bringing Stella Adler to the West Coast to teach on a permanent basis. The LA school continues to flourish as an acting studio and houses several theaters alumni of the Stella Adler-Los Angeles school include Mark Ruffalo Benicio Del Toro Brion James Salma Hayek Clifton Collins Jr.