* Holes (2003): This is the most famous adaptation, a critically acclaimed film starring Shia LaBeouf.
* The Boy Who Could Fly (2006): This is a television movie based on Sachar's 1989 novel of the same name.
* Sideways Stories from Wayside School (1987): This is a television film based on Sachar's first published book, but it's important to note that it was a made-for-TV movie rather than a theatrical release.
There have been other attempts to bring Sachar's work to the screen, but they haven't reached fruition. For example, a film adaptation of "Dogs Don't Tell Jokes" was in development for a while but never materialized.