Yes, "Seven" is one of Master Parker's movies. It also features William Smith, an actor who has appeared in many kinds of movies from Westerns(Streets of Laredo) to Red Dawn.
And yes also to the comment about Perfect Weapon, it was shown in theaters in 1991 after Master Parker's death(12/15/1990).
Mr. Jeff Speakman is a great guy, I've trained with him a few times. He's very fast and strong.