David Benioff and D.B. Weiss discussed there decade-plus Game of Thrones journey at the Austin Film Festival, describing their experience as amounting to "expensive film school" since they had not worked in television before adapting George R.R. Martin's novels. According to one accounting of their talk, they removed many fantasy elements to expand the fan base to include "mothers" and "NFL players." ALSO: Emilia Clarke reunites with Game of Thrones exes Jason Momoa and Kit Harington for her birthday.