An estimated 90 million people in the United States use Amazon Prime, and if you're one of them, there's good news: in addition to free two-day shipping, you also get access to tons of great movies and shows. The best movies on Amazon Prime in March 2019 are a mix of recent hits like Lady BirdFirst Reformed, and The Florida Project, Oscar-winning films like the Mahershala Ali-starring Moonlight, and classics such as Rain Man. The streaming platform is stacked with must-see comedy, drama, and horror films, so there's something for everyone. When you've cycled through all of Netflix and Hulu, these are the best movies on Amazon Prime.