Affleck said that Warner Bros. cautioned him that fans of the comics have been known to bash whoever was cast in the respective role. The actor said executives said to him, "'Listen, we want to talk to you because people go through this process and it can be trying. ... We want to show you some of the reactions that past people who have been cast have gotten, like on the Internet and stuff.' [They showed me] people who were in these movies who did a great job and [commenters would] say, 'Kill him!'"
So what happened when Affleck finally checked the comments for himself? Watch below: