How do you save the recorded presentation on Keynote to use in an iMove project?

I have figured out how to record my slideshow, but I can not figure out how to export it as a video. On YouTube I have seen people do it, but on a older version. I am trying to use the presentation in iMovie. I have the Keynote version 6.1 and iMovie version 10.0.2. If anyone could help me that would be great!!!