Blain LaMotta’s review published on Letterboxd:
This is not a movie. This is a painfully elongated trailer for a product that never materialized. There is no definable structure here, just a blur of images that fail to register much in the way of investment. Characters get brief snippets of backstory before being thrust into a paint-by-numbers mission to stop a pathetic excuse for a super villain. The infectious chemistry of our "worst heroes ever" and the misguided pace of the events makes sure we never get a loss of stimulation at least, no matter how tedious it ultimately becomes. If there is one thing I will take away from this "movie" however, it would be El Diablo. He is the only one here that I felt I could understand where he is was coming from and where he ultimately ends up. He is afraid to use his powers to hurt others due to a traumatic event of his doing in the past. At first, we are not exactly sure what it is, but later, in the most memorable scene that takes place in a bar between the senseless action, we learn the truth. By running away from the reality of his evil deeds, he denies who he really is. When he finally accepts it, he becomes empowered by it and turns his fears into a weapon to help others, to make sure it never happens again. It's profound and emotionally devastating seeing that unfold. On the flip side, the character of Slipknot gets nothing in the way of characterization, and is only there to serve as a punchline to a sour joke. It's a wasted opportunity in a sea of wasted opportunities. Don't even get me started on the CGI clusterfuck that is the finale. I could add some more negative things here, but I'm just not in the mood. I can't stress enough how much of a misfire SUICIDE SQUAD is. What makes it even worse is that there are elements here for something that could have been good. The joke is on us I guess.