Prime Video has also recently added several films that dominated the box office earlier this year. If you missed them in theaters, you can now stream them at no extra cost:

Note: Movie availability changes monthly and varies by country (US, UK, Canada, etc.).

If you have an Amazon Prime membership, you also get access to Amazon Freevee (a separate app/channel within Prime Video). It is free, ad-supported, and often gets "new" movies that aren't on the main Prime subscription.