u/FullSun24

It's an indie film with the following details:

teenage girl filmmaker protagonist, family vacation in Europe, making a historical costume film, bleach-blond basketball camp boy, bisexual/triangular relationship, beach intimacy scene involving all three, poster with the trio together. indie european film with a translated title. both of the other leads have dark somewhat curly hair.

I watched it a couple years ago and I literally can't find it. Please help.