It is a must-watch for every father and son and also mothers and daughters. The film revolves around two contrastingly different father and a son, who struggle to understand one another. The father, being homophobic, often throws rants at his son, who is gay and lives a happily married life. The film is about forgiveness, no matter grueling familial relationships are.
The father seems to be bad, and unempathetic, but we cannot help notice his resentful emotions at the same time, and the movie certainly makes it impossible to hate him. He also suffers from dementia, so that his resentment becomes understandable. The son is more self-contained, hardly temptable, and forgiving.
It is a beautiful, poetic, and artistic movie that says about the circle of life without haste. Viggo Mortensen is undoubtedly an artist. I am in awe of him.