The eight-film series spanned more than a decade of Radcliffe's life. These movies actually show him growing up from a tween to a young man. And they provided him with the opportunity to work with many distinguished actors, including Gary Oldman, Alan Rickman, Emma Thompson and Helena Bonham Carter. Radcliffe finds Oldman's and Rickman's careers particularly inspiring, telling Back Stage that "They never, ever stop trying to get better and working with people they think are going to bring something new out of them.