(Image credit: Prime Video; Shutterstock) If your Prime Video watchlist needs bolstering ahead of the weekend, you’ve come to the right place. I’ve combed through the recent additions to the Amazon-owned streaming service and picked out a trio of fresh arrivals that are worthy of consideration. This week, my picks range from a six-time Oscar winner that stands as one of the most acclaimed movies of the decade, a sprawling Western helmed by “Yellowstone’s” Kevin Costner, and a superhero time-waster that offers plenty of blockbuster spectacle. These new to Prime Video movies should keep you entertained over the weekend. Add them to your watchlist now if you want to avoid the early-summer sun and stay indoors where there's AC instead. ‘One Battle After Another’ (2025) “One Battle After Another” has already cemented its place as a modern classic. It was this year’s awards-season darling, scooping wins at every major show, including Hollywood’s biggest prize, Best Picture, at the 2026 Oscars.…