Everyone would like to see a Pern movie. There have been at least a half dozen people who, over the years, have had the rights to make one or more books in the Dragonriders of Pern series into a movie or TV series.
Sadly, he truth is that it’s very difficult to get anything made in Hollywood, and more so when the budget is big. Mum’s film agent is always looking for likely candidates interested in the rights. Patience is required (blood pressure medicine helps) — remember that version of “The Wizard of Oz” with Judy Garland that we all know and love was actually the third film of the classic novel to be made.
The recent success of Avatar has made it more likely that Hollywood might be willing to see dragons fly.