Netflix allows you to invite your friends over for a movie provided that all have valid subscriptions. With either Netflix Party or Showgoers, you can invite friends to watch any Netflix video with you. These Chrome extensions will synchronize playback among all party members, and offer a sidebar for group chat.
Unfortunately, neither extension is as powerful or immersive as the old Netflix party mode on the Xbox 360, and the only way to use them is with Google’s Chrome browser on a laptop or desktop computer. But until group VR viewing sessions become a reality, they might just be all you have.
Here’s how to set up these two Netflix party extensions:

Netflix Party
Using Google’s Chrome browser, install the Netflix Party extension from the Chrome Web Store. You should see an “NP” logo next to the address bar after installation.
Go to Netflix.com and choose the video you want to watch. The “NP” logo should turn red.
Click on the logo, then click Start the Party. Optionally, check the “Only I have control” box to prevent others from pausing, rewinding, or fast-forwarding the video.
Copy the URL on the next screen, and send it to whoever wants to join. Those users must then install the Chrome extension and paste the link into the browser. (They may also have to press the “NP” logo to begin synchronizing playback.)
Click the “NP” logo at any time to hide the chat window or exit the party.
Netflix Showgoer
Using Google’s Chrome browser, install the Showgoers extension from the Chrome Web Store. You should see a glasses logo next to the address bar after installation.
Head to Netflix.com and select the video you want to watch. A 3D glasses logo should appear inside the playback window.
Click on the logo, then click Start a Watching Party, or click Browse Parties to see if any one is hosting a public viewing session.
Optionally, uncheck “Only allow me to control the video player” on the next screen to let other viewers pause, rewind, or fast forward. You can also check “List my watching party publicly” to let strangers join the viewing session. Otherwise, click “Let’s Go.”
Copy the URL on the next screen, and send it to whoever wants to join. Those users must then install the Chrome extension and paste the link into the browser. (They may also have to press the “NP” logo to begin synchronizing playback.)

Source www.timigate.com/2016/03/how-to-invite-friends-for-movie-on.html#more