I'm sorry everyone has gotten off topic with your marketing help, but i have an idea. People will want to see the movie if they think the fish are mysterious or important, or played some sort of major role somewhere. So i propose that your marketing strategy involve placing fish heads in the backgrounds of famous scenes throuhgout history. You could make a montage as the trailer, and end with a slogan..."Fish heads, where will they turn up next?"
Heres a few ideas to get started.
1. Show a clip of a fish head storming the beach at normandy.
2. Show a clip of the moon landing and when you look in neil armstrongs helmet, you dont see him, but an outline of a fish head.
3. Show a silouette of a fish head on the grassy knoll.
4. Show a fish head at the fall of the berlin wall.
5. Show that it was a fish head that missed the kick in SB XXV.
The trick is to get people to believe that fish heads REALLY were at these events. Once you do that, people will flock to your fish heads movie.
PM me if you have the budget for a marketing exec for your movie. I'll be glad to help.