The ShortCode format : [video v=54269169 widescreen=true]
In the case of the first video, we added borderwidth=0 :
[video v=54269169 widescreen=true borderwidth=0]
The ShortCode widescreen option is both elegant and saves vertical page space. Vimeo, Youtube and locally-hosted videos. This example shows how it looks on a full-width template; great for beautiful videos.