Over the weekend I finally watched the DVD of The Prestige (2006). The
story revolves around two competing magicians, much of it around their
journals that contain their secrets. Great movie, highly recommended.
"The Prestige"
Movie link
IMDB profile

I’ll also recommend ‘The Illusionist,’ another 2006 movie with a similar theme.
The book’s even better.
By the masterful Christopher Priest. Starts out a little slow, but the ending is far more clever than the movie 🙂