Dangerous Moves Easter Egg - Producer's Children Staring in the Movie

Arthur Cohn, the producer of the movie (he won one of his five Oscars for this movie), placed his three children in the movie.
1. During the chess game, you see his daughter sitting in the audience next to a person, who tries to influence the game through supernatural mind-power.
2. His two sons receive an autograph from the younger of the two chess players