Jennifer Garner, who is starring in the Apple TV+ series adaptation of "The Last Thing He Told Me," reveals that she initially couldn't play the lead role because it had already been cast. However, when the opportunity arose, she passionately pursued the role by staying up all night writing and rewriting letters. Garner is not only starring in the series but also serves as an executive producer. The show, based on the No. 1 New York Times best-selling novel by Laura Dave, combines elements of a thriller and a family drama.