In the book, Henry is portrayed as a free-spirited and adventurous person, while in the film, he's more serious and brooding. This change in characterization gives the story a different tone and feel. It's like comparing apples and oranges - both are delicious, but in different ways.
The TV series, on the other hand, takes a more faithful approach to the book, with Henry's character being more consistent with the novel. But, it's also interesting to see how the show expands on the characters and their relationships, giving us a deeper understanding of their motivations and emotions. It's like getting a behind-the-scenes look at the story.