Yup, Yianang. That poster is only a decoy for the gay watchers. There's only a trans character here who is so obsessed with this Eurovision thing. That character is not even likable. So annoying.
I'm not recommending this if you're looking only for the gay stuff. But if you're curious about Lithuanian cinema, this film is a riot. It's a dark political satire and I freakin' like it. It's really funny.