VLC is one of the popular media player. This application is free and available on Windows, Mac and Linux. By default, playing movie file with VLC, you just can open only one instance window at a time, but actually VLC has a feature that let you open multiple movie file in multiple instance windows at once. You can enable this feature with these steps.
1. Open VLC and go to menu Tools > Preferences
2. You’ll see a simple preferences windows, then click on Interface icon. At this windows you’ll see the “Playlist and Instance section”.
3. Uncheck allow only one instance and uncheck use only one instance when started from file manager. Now you can open multiple movie file with your VLC.