I've read the book (and sequel Tramp For The Lord) several times, and also seen the movie multiple times. Excellent book... among the best Christian biographies.
I saw the movie back in the 70's, then more recently in YouTube. It is quite good. There is also In My Father's House, which is more about her life before The Hiding Place.
Another biography I would put on the same level is Evidence Not Seen, by Darlene Deibler Rose.
WOW! What a powerful book. I finished it last night and for no sane reason balled like a baby for about 15 minutes.
It seems unreal that there are real people on this planet like Betsie, Corrie and their father. It makes you have to really examine what our 'needs' are in this life. I am so eager to look into more of Corre ten Boom's life. I think they are on my favorite people list to find in Heaven...