Because Kaltura is a 3rd party tool, it does not import when using the Canvas "Import Course Content."  However, The Media Gallery does have the ability to import content between courses.  Please Note: Media will be imported but if you have created playlists, they will not be imported.  

Access the Media Gallery in the course in which you want to import the material.  in the upper right, select the 3 bars and choose import. A window will open and you can choose from which course you want to import.

Be advised, it can take a length of time for the media to be imported.  You can leave the page, and the import will continue.