This is a QuickLook plugin for Mac OS X 10.11 that allows to have a thumbnail of a video as an icon instead of a generic one. When you trigger QuickLook it displays the thumbnail of the video along with the video informations such as its title, size, resolution, etc...
You can download the plugin here.
Decompress it, and place it in
You will need to restart the QuickLook daemon by running these commands in the terminal :
qlmanage -r qlmanage -r cache
qlMoviePreview is released under the Simplified BSD license, see LICENSE.