The following is a list of the film and television appearances of American actress Marlee Matlin. Matlin, who had previously acted in stage productions, made her screen debut as the female lead in the 1986 film "Children of a Lesser God", for which she won the Academy Award for Best Actress and a Golden Globe Award. Using only the above description and what you know about the world, "Marlee Matlin's first Academy Award for Best Actress was for the first film in which she appeared." is definitely correct, incorrect, or inconclusive? 