What is the fine-grained topic of the following text: Mark, 47, called Michael -- who will be playing a younger version of his character, Hiram -- the "much better and handsomer Hiram" in his post, while Kelly took a moment to jokingly remind Michael that "as your fiduciaries, we are hereby entitled to 10 [percent] of all future earnings hereto wit." Only return the topic.
Mark and Kelly jokingly discussing their son Michael's future acting role and earnings