Heartstopper hair & makeup artist Erinn Cahill just shared a new Tiktok with behind the scenes clips from season 2. I added this under a new "stuff I missed" header in the s2 sources google doc. She says Instagram saw all these clips months ago but there are definitely a few short clips here I've never seen before as well!
(I still don't know how exactly I'll structure the "stuff I missed" video but there's definitely content for it...)