1. Open Netflix on your preferred device.
2. Click on the "Settings" icon in the top-right corner of the screen (it looks like a gear icon).
3. Select "Profile Settings" from the drop-down menu.
4. Click on the "Viewing Preferences" tab.
5. Under the "Movies and TV Shows" section, click on the "Add Custom Genre" button.
6. Enter the name of the new film choice you want to add and click on the "Create" button.
7. The new film choice will be added to your profile and you will be able to start watching films from that genre.
Note: You can add up to 10 custom genres to your profile.