This feature IS the comic book limited series in motion. From the color pallette to the Cold War setting, everything goes right. With the appearance of each (truly) iconic member, you eagerly await the next. For better or worse, depending on your preference, this is not a Superman-Batman-Wonder Woman centric film. Each member is spotlit and well characterized.
It will take your grandparents back to the beginning of DC's universe while taking the rest of us for a fun Earthbound adventure.
Now, if they would only follow it with a sequel that has the sidekicks involved!