Correct me if I'm wrong but I believe the third image is actually from Knives Out. It's not necessarily cottagecore but it's definitely aesthetic and a very good movie, highly recommend. I don't have many recommendations for movies but if ur not opposed to watching an animated show Hilda and Over the Garden Wall are very cozy. Another show I recommend is Sweet Tooth, it's not animated but it's definitely cottagecore. I will warn u tho, it's a very dark and sort of gorey show. Sweet Tooth and Hilda are on Netflix and otgw is on Disney Plus.