My Neighbor Totoro
This film is the gold standard for gentle viewing. It breaks traditional narrative rules by focusing almost entirely on exploration, friendship, and the wonder of nature, rather than a heavy overarching conflict. The pace is slow and dreamlike, perfect for calming an anxious mind. The forest spirits, including Totoro, are purely benevolent, offering a sense of safety and wonder. It's pure, unadulterated childhood serenity.