I don’t know the backstory of Suicide Squad but I think this is required watching as DC continues to build up its movie universe to the Justice League movie. But after watching it, there doesn’t to be a big need for this movie.
It’s basically a self-contained movie similar to Guardians of the Galaxy where a rag tag band of shadowy figures save the world. There are some cameos from Batman and The Joker but its just to fill in the backstory. There are some character introductions and the after credits scene is important (for the universe) but I think those can be shared without tagging an entire movie along with it.
The plot is formulaic. Bad guys get together to help (read: are forced) the good guys, but the good guys suffer a setback and then bad guys develop a conscience and volunteer to beat the big bad guy. Its not boring but it is forgettable. I remember reading some press saying the atmosphere or music was great, but neither impressed me. This is a quite average three out of five stars.