How to have a video play and when finished go back to displaying the poster image?

I've been working on an interactive PDF book that is 700 pages for the last 6 or 7 years. Each year the functionality has changed just a little bit, as have the preferred video and audio files etc. The old process was exporting the PDF from Word and then adding the interactivity from within Adobe Acrobat. With that method, we were able to have a video show a poster image, play once, and go back to showing the poster image.

This year, we're moving the manuscript over to InDesign. We were also hopeful to move the interactivity to InDesign. When adding a video, we are able to add a starting poster image. But, when played in Adobe Acrobat, the video stops on the last frame of the video, not reverting to showing the original poster image when completed. This is different than how we had it set-up in Adobe Acrobat.

The client is not pleased because the poster image is an "image" in the book with a caption below it. When the video is done playing the client is concerned that the caption is visible for a photo that is no longer visible because the last frame of the video is showing instead. Make sense?

Work-around? Ideas? I'd love to keep the video interactivity in Indesign and part of the one-click Interactive PDF export feature, rather than adding as a last step from within Adobe Acrobat.