Question: Who penciled the comic on which the 2011 comic movie starring Justin Chambers is based?
Sentence (from "Justice League: The Flashpoint Paradox"): The film stars Justin Chambers as Barry Allen / Flash, C. Thomas Howell as Eobard Thawne / Professor Zoom, Michael B. Jordan as Victor Stone / Cyborg, and Kevin McKidd as Thomas Wayne / Batman.
Relevant evidence: Yes