Stoneflight

Stoneflight is a proposed take on the 1975 novel of the same by Georgess McHargue. It was scheduled for a 2001 release.

Plot
A girl takes shelter with a brownstone apartment gargoyle while escaping from her parents. The gargoyle then takes her to Central Park and tells about other gargoyles that have helped troubled kids.

Why It Was Cancelled

 * Apparently due to the story being out of print for so many years, the filmmakers weren't able to get the material from the book and decided to not to greenlight the story.