I've been a comic fan since I was a kid and we are living in a crazy age where technology has finally caught up to what can be published on a comic book page. X-Men in 2000 started the wave of newsprint to film explosion and with that a flood of comic book related movies.
There have been some hits as Iron Man, Avengers and The Dark Knight followed by the bombs of Green Lantern, Jonah Hex and Elektra. I actually liked Elektra but it did bomb at the box office.
DC Comics has been trying to have a hit movie that doesn't involve Superman or Batman and I think with Suicide Squad, they are one step closer.