It is rumored, but unconfirmed whether or not he worked with brother Ted Griffin on rewriting the screenplay for A Good Year (2006).
2
Did a set of revisions to Sheldon Turner's screenplay for Up in the Air (2009) while his brother Ted Griffin was attached to direct. The two worked on numerous drafts of the script, but the project stalled and their work was tossed out.
3
He was selected to fill the Hunter/Zakin Chair in Screenwriting for the academic year 2010-2011 at UCLA's School of Theatre, Film and Television, where he taught a graduate level class.