I've thought about this for a while since seeing the movie. In some regards it has the same problem BvS had - there are certain moments and scenes that are very good and enjoyable when looked on their own, but for some reason the end result is that the whole is
less than the sum of its parts. It's very weird
So let's see... A list would probably make this more structured lol
1) The characters:
- One of the film's big flaws in my eyes was that there wasn't a main character. That's really the same problem that
The Phantom Menace has (other than Gungans and kiddy!Anakin, obviously) - there are a bunch of characters that all seem important at certain times, but they have no real arcs and the story is not about them all the time. Which means that the viewer has not much of a reason to care what happens to them. I thought about it and I still can't figure out who's supposed to be the main character - is it Flag, is it Deadshot? Harley? The film itself doesn't appear to know that answer too
So for a start, I'd pick one, give them a story arc and try to focus most of the story through their POV. Flag seems like the most conventional choice, as he allows you to have a more sympathetic main character in a movie where the rest of the cast are hardened criminals. It's a pretty natural arc too, you can have him realize what a bad idea Task Force X is, that Waller is a scumbag and he doesn't have to blindly follow her orders, that even the supervillains can have humanizing traits, you can have an actual love story with June Moone (more on that below) instead of a flashback etc.
- Completely recast and rewrite Deadshot. I like Will Smith as much as the next guy and I appreciate the star power he brought to the table, but that just wasn't Deadshot. Deadshot is not supposed to be a likable and heroic anti-hero who only assassinates criminals, he's a stone cold sociopath who has no regard for human life, including his own. When he's on a mission he doesn't care about the money like it was shown when he was introduced, he's a death- and thrill-seeker.
- Completely remove Katana and El Diablo as they only clutter the already-big cast. Katana simply wasn't needed in that film and just took space. Not to mention that a backstory like hers can be saved for a sequel instead of just being told in a few confusing sentences. As to Diablo, I liked him for most of the film, but like Katana he would work better for a sequel in which you can devote more time to his story and sacrifice so it would actually pack a punch (which it really didn't in the movie).
- No Enchantress. The whole thing felt nonsensical and she was the type of villain you don't give a crap about because there's no personal connection to the protagonists. Well, there was Flag and all, but they literally had no time together before she escaped and so the viewer was indifferent to his plight. I would keep June, though. First, because Cara Delevingne is cool, and second, because she's the type of character that would work much better if you take your time with the possession, building the tension, showing her struggle and fear, and upping the ante. More on that below when I get to the plot.
- The rest of the characters are fine as they are. Waller was portrayed very well, though I wouldn't bother with that whole "she was secretly in Midtown the whole time" thing at all. Boomerang is ok, you always need someone who brings a bit of levity. Croc... I dunno... he wasn't terribly important, but I suppose you need muscle for the team, so fine. But make him more feral and hateful.
Joker and Harley I would keep as they are; I am aware that the whole thing has become somewhat controversial, with a lot of Leto's screentime being cut and with the relationship being more romantic and less abusive than it was in the comics and the cartoons, but I think that it was fresh, that it worked and, to be honest, I enjoyed it a lot. Also, it could actually serve some storytelling purpose by creating some parallels with what Flag and June have. The only thing I would probably change is not cut so much of the Joker's scenes because I felt that it wasn't explained properly how he managed to do a lot of stuff like finding out about the nanobombs and who made them (like, you
can make the mental leapfrog and all, considering that he got his hands on that guard, but how did he know about the guard in the first place? Stuff like that, a bit more explanation never hurt anyone).
2) The plot:
- First off, as I said above, no Enchantress and no destroying and saving the world. That stuff is the heroes' territory and the villains should have a different problem to solve. Also, and that's even worse, by having that whole thing in the first movie, you ruin yourself for potential sequels. If they already saved the world, what's next? The galaxy?
The thing with the Enchantress actually
can work, I think, but only in a sequel if you have taken your time with June before. That way you have that personal connection with both the rest of the characters and with the viewer that lacked in the actual film.
- Make the conflict smaller and more intimate. The Suicide Squad is a black-ops team, they're not the Dark Avengers. Something with, say, Deathstroke can work well, and you can even tie it up with BvS and MoS by having him be enhanced with Kryptonian tech or something. The team can be sent to silence him, or he can target the government and you can have the team uncover what has been done to him over the course of the film. Whatever, there's stuff that can be done in that direction, the most important thing is that it needs to be smaller and not so all-over-the-place. Add the attacks from the Joker who is hellbent on rescuing his girl, and you have a nice action/thriller that is about things like personal vendettas, intrigue, top secret government atrocities etc. instead of villains who save the world which is
yaaaaawn.
3) The tone of the film. I find it very ironic that the DCEU made two dark movies about their heroes, and they then made a more lighthearted one about the villains. I understand why that was done, a lot of fans were unhappy with Snyder's grimdark, the studio wanted to copy
Guardians of the Galaxy's success etc. etc. In an ideal world, I would make
Suicide Squad more dark and violent than it is now, but in order for that to work you have to rework BvS and MoS too.
There's probably more that can be done, but I don't actually have a screenplay, so at this point I'm out of details.