Opening Shot: “January 10, 1985. Hawkins, Indiana.” In a wintery scene, a person in a yellow hazmat suit chases something from the Upside Down with a flashlight and a torch. The person thinks he’s obliterated what looks like a tiny demogorgon with the torch, but the ashes settle in the snow and reconstitute themselves as something else.

For fans in need of new movies and TV shows to tide them over in between Bruins and Celtics playoff games, there’s plenty of titles to check out this weekend. From “Marty Supreme” making its streaming debut to the arrival of a “Stranger Things” spinoff, here’s what to watch.