^^^ What these guys said.
I can't think of another movie that can be so greatly improved by simply editing and cutting. Remove the Klingons, remove the humor, remove the bad effects... it can only improve the movie.
Don't really have to change, re-write... just cut cut cut.
After the bad parts are edited out, what remains isn't such a terrible ST movie. Not great or very good, but not terrible.
Actually, I think if you remove some of those elements, it makes it more of an obvious retread of "Way to Eden."
Right on. And in both cases, it's not really a bad idea and is a common ST story theme-- the group of misfits or malcontents or ostracized folk, seeking fulfillment or paradise or the promised land.
Now portraying that general story via a space-hippy counter-culture movement maybe isn't so great. Religious zealots and cult figures are another way to tell the story as in TFF.
Whatever story means are used, the idea is fine. It's been well used in novels and films before, it's not rotten from the get-go.