Traci Nell Peterson at 2013-06-06 11:39:54:
Apologies for lack of author/citation (can't remember where I saw it), but the definition below is White Board Worthy, and consistent with what Scott repeats throughout this site:
"Marketable = intriguing concept that feels familiar and has great lead characters for A-list actors. What a producer/director/actor can say 'Yes!' to."