UPDATE: Sutter has posted updates on his Blog explaining/correcting his original post.
Kurt Sutter (“The Shield”) has posted on his official Blog that he has removed his screenwriter credit from Punisher: War Zone:
So I’ve officially removed my name from credit arbitration for Punisher: Warzone. That’s the process where the producers of the movie submit all the drafts and the names of the writers they feel should get credit. Then the WGA decides what writers contributed most and who deserves credit (and the cash bonuses that come with the credit).
If you want to know why, click here.
Source: Advanced Dark