Captain Craig wrote:
Think they'll add the mohawk in Post? Or have it briefly and show it being cut down?
While I also believe it to be a fin and not a Mohawk (a fauxhawk?), I can totally see it being added in post. If you've never watched The Avengers with the Joss Whedon commentary, you totally should. He points out so many of the CGI touches that you never would have ever even realized and thought of, like damage to Iron Man's facemask or the grass in a field, to big things like Chris Evans being digitally removed from a shot. Just amazing, and a little scary, what they can pull off digitally.