Malila: The Farewell Flower is a BL movie that lies a little bit on the darker side of the tracks. I personally haven’t watched it, but going off the synopsis, it features a lot of darker themes that might not be for everyone.
Synopsis (Credit to MDL):
Former lovers Shane and Pich reunite and try to heal the wounds of their past. Shane is haunted by the tragic death of his daughter, while Pich suffers a grave illness. As death approaches, Pich dedicates his remaining time to making Bai Sri, a ceremonial ornament. Meanwhile, Shane decides to become a Buddhist monk until one night at a graveyard, he encounters his lover in another form.
BL Discord: https://discord.gg/hp6Kw59
Movie: The movie itself is available on a couple of different platforms. The first being GaGaOOLaLa. GaGaOOLaLa is a paid, LGBTQ dedicated streaming service, so you will need a subscription in order to watch. I am not sure if it is geolocked for any specific regions, so you will have to check that out for your region.
The movie is also available to purchase or rent from Amazon Prime Video. Again, this will vary from region to region, so you will need to check to see if it is available for you!