The larger problem, as it becomes progressively evident, is that this series lacks a resonant origin story, a myth, on which a world, multiple stories and a fan base can rest. The Guardians personal stories are continuing to emerge, and the meme thats in circulation is family, which at times makes it feel as if the movie is taking cues from the Fast and Furious franchise. This explains the testy, at times violent and generally dreary exchanges between Gamora and her sister, Nebula (Karen Gillan), a bald badass itching to deliver payback for their rotten childhood. The performers look fierce as they slam around, squaring jaws and giving good side-eye, but it just feels like narrative filler.