Black Widow movie, explained: When it takes place, the post-credits scene, more (spoilers).
Advertisement Skipping ahead, what’s up with the lightning bugs? Is that a Marvel thing? I feel like I was missing something! They’re just there to provide a little sentimental callback to the childhood of Natasha (Scarlett Johansson) and Yelena (Florence Pugh). Earlier they were just there to establish that their “mom” (Rachel Weisz) is a scientist via the fact that she knows science-y words like bioluminescence. While there are obscure Marvel comics characters named Lightning Bug and Firefly, that seems to just be because there are Marvel characters named after most well-known inse...