Russian Blue Film 2021 【iPad RECOMMENDED】

I need to verify if there's a specific "Russian Blue Film" genre or if it's a misunderstanding. Since I can't find any specific genre, it's safer to split the query into two parts: classic Russian cinema and blue-themed or blue-toned vintage films. Then provide recommendations for both categories, possibly with an explanation that "Russian Blue" might be a mix-up, but I'll address both aspects to cover their potential needs.