Some 23 connections from IMDB
The movie is listed as "The Number 23 (2007)" 2+3+2+0+0+7=14, "The Number" contains 9 letters. 14+9=23.
I liked "The Number 23" on facebook via IMDB, I became the 7'718th person to do so. 7+7+1+8=23
The movies two main characters are played by Jim Carrey(9 letters) and Virginia Masden(14 letters) 9+14=23
Boredom is a terrible thing (which by the way contains 23 letters)