After decades of behind-the-scenes issues, Terry Gilliam was able to film and release his long-awaited, “The Man Who Killed Don Quixote,” in 2018. And like most things that have been hyped up for 25 years, the film was perfectly fine, if not a little disappointing. But for those that weren’t terribly impressed by ‘Don Quixote’ but are fascinated by the drama of getting the film made, “He Dreams of Giants” is for you.