If you have to watch one movie this Thanksgiving, stream this underrated gem starring Robert Downey Jr.

Image from Digital Trends

• The film, 'Collateral Beauty,' was largely overlooked when it first hit theaters in 2016, but has since gained a cult following for its poignant examination of grief and loss.
• Downey Jr. delivers a career-defining performance as a grieving father who embarks on a mystical journey to find meaning in the wake of personal tragedy, showcasing his versatility beyond his iconic Iron Man role.