Import Keynote Animation to iMovie

You can't do this in Keynote. Keynote recording only allows for you to record the whole narration at once. You could work around this by recording your audio in GarageBand, and then importing your GarageBand audio into Keynote. GarageBand allows for much more finely-grained control of your recordings, including re-recording a section.

Another option is to use PowerPoint:Mac, which does allow you to re-record the audio for one slide.

Interesting question. One would assume if you record the presentation of a Keynote, all visuals would be recorded. Turns out it’s not.

I tried myself, and any Quicktime loop is only exported once. Bug? In the meantime, you could modify your Quicktime move to play several times in a row.

You can do this in Quicktime Player 7 (everyone should have it), by selecting all (CMD-A), copying to the clipboard (CMD-C) and then pressing paste (CMD-V) several times in a row. Save the movie in place, it will be virtually the same file size. Hope this helps!