Instead of using that long, messy embed code that video-sharing sites provide, the NFB Video Plugin allows you to embed a video using the URL of the film.
In order for the plugin to recognize the link as oembed, simply insert the link preceded by "oe". Example:
oehttp://www.nfb.ca/film/waterlife_trailer
Player sizes are all regulated through the plugin settings, so you won’t break the layout of your blog with a video anymore. The default is 516x337.
The plugin was designed to work with NFB.ca, but also works with Vimeo.com and other sites that allow oEmbed autodiscovery.
Find out more and download the plugin here.