You can watch the movie Oppenheimer (2023) on several streaming platforms depending on your region:

• In the US, Oppenheimer is available to stream on Peacock with a subscription

• It is also streaming on Amazon Prime Video in 2024, where you can watch it with a Prime subscription or rent it for around $5.99 on Amazon Video, Apple TV, Google Play, and YouTube

• In the UK, you can stream it on Sky Go and Now TV Cinema, or buy it as a download on Apple TV, Amazon Video, Microsoft Store, or Sky Store

• Additionally, it is available to buy or rent in 4K or HD on Google Play and Apple TV

Availability may vary by country, so checking local streaming services or digital stores is recommended. There is no indication that Oppenheimer is currently available on HBO Max in all regions