Yes, it is. The movie takes inspiration from real events and figures related to the creation of the Christmas celebration as we know it today.
Sure is. 'The Man Who Invented Christmas' weaves a narrative around the real-life influences and circumstances that contributed to shaping the modern perception of Christmas. It fictionalizes some elements for dramatic effect but has a basis in truth.
Yes. The story in 'The Man Who Invented Christmas' is rooted in historical facts and real people involved in the evolution of Christmas. However, it does incorporate some creative license to make it more engaging for the audience.