Brian De Palma wrote Redacted. Redacted has genre DramaRedacted has genre Crime FictionCrime Fiction has examples: Zodiac (Crime Fiction Film)
[Human]: Can you recommend directors related to Brian De Palma? [Assistant]: Yes! He wrote Redacted which is starring Ohad Knoller. This is a drama and crime fiction movie. [Human]: I see, I like crime fiction movies any other directors you can recommend in this genre? 
Well, I don't have any suggestions for directors but I do have suggestions of movies with this genre just like Zodiac, Undisputed, and Tomorrow Never Dies.