All Is True is a thought-provoking and beautifully crafted biographical film that delves into the life of none other than the renowned poet, playwright, and actor, William Shakespeare. The title subtly nods to an alternative title for Shakespeare's play 'Henry VIII', providing us a reimagined glimpse of the final part of Shakespeare's life following his retirement. Directed by multi-talented Kenneth Branagh, who also stars as the late-period Shakespeare himself, the film was released in 4K UHD quality, promising a visually captivating experience.

The plot kicks off in 1613, with the famous Globe Theatre, Shakespeare’s pride and joy, accidentally burning to the ground. Shattered by this unfortunate event, Shakespeare decides to retire and return to Stratford, his birthplace, abandoning London's grandeur, artistic pursuits, fame, and success. The narrative, from there on, hovers around his obscure life post-retirement, where he relentlessly struggles with personal tragedies, family tensions, and the haunting memories of his only son's untimely death.

Kenneth Branagh, except for the masterful director that he is, exhibits a compelling and poignant performance as William Shakespeare. His portrayal of Shakespeare in his last years, suffering from grief, vulnerabilities, guilt and reflecting on past errors, and legacy indulges you in contemplating the legend's life from a completely unique perspective.

The movie would be incomplete without acknowledging the performance of the unmistakable Sir Ian McKellen in an exciting cameo as the Earl of Southampton. His appearance provides one of the most captivating and emotional peaks in the film, leaving a lingering impact. The confrontation scene between McKellen and Branagh is one of the high points of the movie where two formidable Shakespearean actors come face to face. The dynamic duo truly delivers, leaving the audiences spellbound with their powerful performances.

The storyline is a compelling blend of historical facts and creative liberty, giving the audiences an imaginative interpretation of the legendary bard's final years. The creators masterfully integrate elements of Shakespeare's own plays into his life, creating a captivating emotional and psychological arc for the leading character.

What sets All Is True apart is its exquisite cinematography, shot in 4K UHD quality. The visual details are breathtaking, enhancing the feeling of stepping back in time into the 17th century. This, coupled with a beautiful art direction and meticulous period details, makes the film a visual spectacle.

Moreover, the costumes and production design create an alluring historical ambiance that unquestionably contributes to the viewing experience. The lush landscapes, homely sights of Stratford, and the dramatic lighting during the night, all add a layer of substance to the visual aesthetics of the movie.

Judith Quiney, Shakespeare’s youngest daughter, is movingly portrayed by Kathryn Wilder. She brings emotional intensity to the film with her gripping performance. Quiney is known to be a rebellious spirit, and in Wilder's hands, develops into an engaging multi-dimensional character, providing a much-needed feminine perspective to the overarching story.

The screenplay is another strong asset of All Is True. Written by Ben Elton, known for his comedic writings, it helps shape the film as a tragicomic masterpiece, oscillating between light-hearted banter and deep, contemplative dialogue. Elton uses his wit and sharp humor to infuse the Bard's world with a modern sensibility that ensures the movie remains relatable to contemporary viewers.

All Is True is more than just a biographical film. It is about art, love, regret, family, mortality, and legacy. It cleverly uses Shakespeare’s own life-story to examine universal human themes that echo throughout the Bard's work. With its supplementary 4K UHD visuals and strong performances, it offers an immersive, intellectually stimulating, and emotionally satisfying cinema experience.

In conclusion, All Is True, lovingly crafted by Kenneth Branagh, is a captivating retreat for all lovers of literature, history, and film, and of course, the fans of William Shakespeare. It's an unusual adaptation that takes viewers beyond the celebrated plays and sonnets, and into the heart and mind of the man himself, uncovering the raw humanity behind the legend. As a study of life's most relentless themes like mortality, guilt, and legacy, it is indeed a timeless narrative.