Were the books Toby Tyler and The Graveyard Book both made into films?    No
Toby Tyler Toby Tyler is a film produced by Walt Disney Productions and distributed by Buena Vista Distribution Company on January 21, 1960. It is based on the 1880 children's book "Toby Tyler, or Ten Weeks with a Circus" by James Otis Kaler.
Diary of the Dead Diary of the Dead is a 2007 horror film by George A. Romero. Although independently produced, it was distributed theatrically by Dimension Films and was released in cinemas on February 15, 2008 and on DVD by The Weinstein Company and Genius Entertainment on May 20, 2008.