From this detailed guide, you can learn how to install TMDb Movies Addon On Your Kodi.
Sections include Movies, TV Shows, Search, My Lists and more.
How To Install TMDb Movies Kodi Addon
- Open Kodi
- Be sure to have the Unknown Source box checked as Kodi requires this before installing 3rd party add-ons.
- HOME Screen > Add-ons > Settings button 
> Add-ons > Enable Unknown Sources.
- From your Home Click Settings (cog icon top left)
- Click File Manager
- Click None
-Type in the following EXACTLY https://tinyurl.com/angelitto
- Click OK
- Click back on your remote/keyboard
- Click Add-ons
- Click Install from Zip File
- Click angelitto
- Click repository.angelitto.x.x.zip.
- Wait for Add-On Enabled Notification
- Click Install from Repository
- Click Angelitto Repository
- Click Video Add-Ons
- Click TMDb Movies
- Click Install
- Wait till you can see the message Add-on installed pops up. That's it! You can now find you addon from main menu > Add-ons, enjoy.