Mr. Quadros worked as fight choreographer and 2nd unit director on "Pit Fighter" which was produced by The Syndicate in association with 20th Century Fox and stars Dominiquie Vandenberg ("Gangs of New York", "Mortal Kombat"), Steven Bauer ("Traffic", "Scarface") and Stephen Graham ("Snatch").

Stephen also appeared in and served as fight technical advisor for "Cradle 2 the Grave" (Warner Bros/Silver Pictures) starring Jet Li, Mark Dacascos and rap superstar DMX ("Cradle 2 The Grave" hit the theaters on February 28, 2003 and went to #1). Additionally, Stephen choreographed one of the main fight sequences in "Cradle".

Mr. Quadros was fight technical advisor for "Exit Wounds" (Warner Bros) starring Steven Segal and DMX, co-starred in "Sworn To Justice" with Black Belt Hall of Fame member Cynthia Rothrock and was the guest lead on a season premiere of the popular TV series "Walker, Texas Ranger" with martial arts icon Chuck Norris.