It takes bravery for a film to grapple with weighty subjects like how to live or how to die, topics that are often challenging to explore. Harold is a young man on the cusp of adulthood, and he’s intensely preoccupied with death: he drives hearses, attends funerals simply because he wants to, and repeatedly practices ending his own life. He undergoes a transformation through his relationship with an older woman who embraces every moment and holds some unconventional beliefs, like taking things that don't belong to her without permission. They both find themselves learning from one another, and the movie illustrates this exchange and the unique connection they form. Dark comedies are rarely universally appealing, but this one is particularly moving and infused with an optimistic tone. The film confronts serious issues with a relaxed and informal approach that doesn’t lessen their impact: what it means to die, how to live, how to appreciate life or face death with grace, how to nurture and understand a young person, among other things. Because of this, and due to its dark humor, the film isn't straightforward and may not resonate with everyone, either because of its comedic style or the subjects it explores. The production quality is good, but the movie has a low-budget feel. Though set in America, it possesses such a distinctly British sensibility that you might assume it’s taking place somewhere in the English countryside. The cinematography is well done, with subdued contrast and effective lighting, along with appealing sets and costumes. I especially want to mention Harold's and Maude's homes, because they are strikingly different yet perfectly reflect their personalities: one is a grand, old-fashioned house steeped in history, while the other is a charming little home filled with comfortable touches. The technical aspects aren’t extravagant, although the soundtrack stands out as being somewhat jarring and overdone. I have to commend Bud Cort's exceptional performance; he’s an actor I was unfamiliar with who apparently hasn’t had many roles in film, alongside Ruth Gordon’s inspired portrayal—a seasoned performer who took on a wide range of parts throughout her career.

Source on TMDB