34. Harry Potter (2001-2011)
Ah, Harry Potter. Who hasn’t at least heard of him? Harry Potter is a series of novels written by J.K. Rowling that has become popular amongst readers of all ages. It is, without a doubt, the most successful book series in the Young Adult genre.
Its adaption to film was equally as successful, with all seven books becoming films (with the last one being split in two). It’s had a passionate fanbase ever since and was a unique phenomenon where it felt like the audience grew up with its actors, who went from young children to full adults throughout the filming process.