linking an image to video

[BrianBam]

I would like to create a page where people can click on images to and have a video that is linked to that image play. Can someone tell me where I can learn how to do that? I would really like the first part of the video to play while the latter part of the video is loading.

[AutisticCuckoo]

<a href="/path/to/video"><img src="img.png" alt="text equivalent"></a>