VIDEO : Patti Reagan Writes Open Letter to Will Ferrell, Outrages over 'Reagan' Movie

After appearing on "The Black List" for 2015 as one of the year's most loved unproduced scripts, Will Ferrell is slated to produce and star in a movie tentatively titled 'Reagan,' wherein the former titular president's dementia is a key factor in the storyline. Patti Davis, daughter of Ronald, wrote in an open letter to Ferrell, "You intend to portray my father in the throes of Alzheimer's for a comedy... I watched as fear invaded my father's eyes - this man who was never afraid of anything...