How to displaying a Vimeo video in a Lightbox that launches with the page load

You can try the jQuery plugin HTML5 Lightbox:, the quick installation is here:

You can add the following code to your webpage head section, just before </head>, and must be after the html5lightbox.js code.

<script type="text/javascript">
		html5Lightbox.showLightbox(4, '', 'Big Buck Bunny');