The final month of 2025 has arrived, but fortunately, December won't be a quiet month on the major streamers. Netflix has an original Western and a comedy musical sequel ready to go, and that's just near the beginning of the month. Watch With Us has added those two selections to our picks for the five movies and TV shows you need to watch in December 2025. The rest of our picks include the second season of Prime Video's breakout hit, a promising new Peacock franchise and a horror flick that didn't get enough attention in theaters.