I Have a Friend(1974)

Based on a story by Alexander Batrov. A film about the relationship between schoolboy Gleb and his grandmother, which starts off very coldly but changes dramatically. The grandmother, a war veteran, comes to visit her grandson for the first time, but he is not at all happy about her arrival, as he was planning to go camping with his friends. However, his tireless and energetic grandmother changes his attitude towards her. And they become best friends.