If you are having issues with embedding content into Canvas, it is recommended that you clear your cookies and cache from your browser.
Step 1: Navigate to your Canvas Page, and click on More External Tools
Step 2: Use the drop-down menu to find Films on Demand
Step 3: From the new window that pops up, conduct a search and select a Embed size
Step 4: When you publish the page, your video will be embedded within the Page