https://www.thestage.co.uk/news/2019/sunday-in-the-park-with-george-starring-jake-gyllenhaal-to-transfer-to-the-west-end/
Another one to see then!
In consolation for the transfer that never was (but we can still hope (https://theatrefan.co.uk/jake-gyllenhaal-gives-update-on-west-end-production-of-sunday-in-the-park-with-george/)), here is a full-length slime tutorial from Sunday's 2017 two-month limited B'way run:
Saturday at beach with Steve (https://www.youtube.com/watch?v=wPCNhqa0Gb8)
(...coy titles being an abiding hallmark of the slime-pedagogical métier).
Taken from the extreme house-right front mezz, the videography isn't topnotch, but it's still quite watchable. Come for the wonderful Gyllenhaal, stay for the trippily anachronistic Chromolume (https://www.livedesignonline.com/theatre/creating-a-chromolume-sunday-park-george) (starting about 1:29:15 (https://youtu.be/wPCNhqa0Gb8?si=HNS6rvxNLVh71j9U&t=5355) in the video).