Jake Gyllenhaal starred in ZodiacZodiac is starring Robert Downey Jr.Robert Downey Jr. starred in Zodiac (Crime Fiction Film). Zodiac (Crime Fiction Film) is starring Jason Wiles
[Human]: I really enjoy the actor Jake Gyllenhaal could you recommend any movies he has starred in?  [Assistant]: Why certainly! A few of his films I recommend are Zodiac, The Good Girl, and The Day After Tomorrow. Have you seen any of those? [Human]: I have only seen The Good Girl. Is Robert Downey Jr. in Zodiac?  
No, Robert Downey Jr. isn't in Zodiac. He starred in The Avengers instead.