Is it possible to add video content to a layout and control the playback
in the timeline?
This one talks about adding an MP4:
http://forums.adobe.com/message/4734571#4734571
And this is the thread I used to embed a YouTube video:
http://forums.adobe.com/message/4719226#4719226
You can do what you are looking for. The big challenge will be managing the media. If you use an MP4 video, it will not work in Firefox. Sadly we are back to the days of having to encode multiple video flavors for the various platforms and broswers. (I miss FLV already.)
By the way, a note to Adobe, it appears that the "Search" above only searches forum topic titles (?) So although that thread mentions VIDEO and YOUTUBE quite a bit, a search does not turn up that thread at all because the title is:
North America
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Asia Pacific