The Movies Anywhere app is free, but all Watch Together viewers must either purchase the movie or receive a Screen Pass for that title. Screen Pass, which is still in open beta, lets users share movies they’ve purchased with friends and family for limited-time viewing.

Watch Together offers a few advantages over other watch party options. Hulu, for instance, only lets viewers join its watch parties from the web app, and everyone has to be a No Ads subscriber. Watch Together is available on mobile, web and many smart TVs.  While it’s not exactly free, if you combine it with Screen Pass, only one person has to pay for the movie, so it’s one of the more affordable options. Twitch also requires its watch party viewers subscribe to Amazon Prime. Overall, official support for shared viewing is still extremely rare. Netflix hasn’t had official support since its features disappeared from Xbox 360.

To start a Watch Together viewing, search for the title you’d like to watch in Movies Anywhere. From the details page, select the Watch Together button and the “I want to host” button. You’ll then get a 6-character room code and URL to share with your guests.

We recently discovered and fixed issues related to your settings choices for the way we deliver personalized ads, and when we share certain data with trusted measurement and advertising partners. We want to share more context around this with you: https://t.co/jDn5zeWVwU

— Twitter Support (@TwitterSupport) August 6, 2019

In a blog post, Twitter explained that if you clicked or viewed an ad on one of its mobile apps since May 2018, it may have shared info like your country code and when you engaged with the ad. And since September 2018, it may have shown you ads based on inferences it made about the device you use. That data stayed within Twitter, and both glitches were fixed on August 5th. Though, the company says it is still determining who may have been impacted.

Tech companies, most notably Facebook, have come under fire for sharing user data. While Twitter has avoided most of the criticism, this isn’t the first issue it’s run into. In May, a bug caused it to accidentally store and share some iOS location data, and it once sold data access to a researcher from Global Science Research (GSR), the company that harvested Facebook data and shared it with Cambridge Analytica. The data revealed this time may not be too damaging, but it’s definitely not a good look for Twitter.