“The Suicide Squad” is a totally bonkers, off-the-rails, bloody good time (emphasis on bloody). After James Gunn, of “Guardians of the Galaxy”, was briefly fired from Marvel, Warner Brothers Studios snatched him up to make a film that assembles all the things he excels...

When Margot Robbie made her debut as the insane clown criminal Harley Quinn in 2016’s “Suicide Squad”, it seemed like a match made in movie heaven. Except that “Suicide Squad” is a truly awful movie, quickly nixing the prospects of seeing more Quinn anytime soon. Now,...