the thought of Marcus. as a kid watching movies with Douglas (i.e Marcus was In The Room while Douglas was goofing off) and seeing how over emotional everyone gets in acting and Marcus watches a character sob heavily and asks:
--
Marcus: Hey, dad? What is that lady doing?
Douglas: Uhh, crying. she’s sad.
Marcus: You said you were sad all the time, why aren’t you crying?
Douglas: (Whispering to himself) I’m crying on the inside. (Louder) Um, anyways, people only cry if they... get really sad. Or whatever.
Marcus: Can I cry?
Douglas: Well, I mean, um, do you want to cry?
Marcus: If I could cry, would that help my missions?
Douglas: Probably? I mean, it’d take you some practice since you don’t really... feel things.
Marcus: (Smiling) Okay, I’ll practice.
--
And whenever Marcus “practices” Douglas can tell that they seem weirdly into it. Like ‘Having-Feelings’ into it. Douglas brushes it off, mostly. He just thinks that Marcus’s programming is exaggerating their actions and disregards it, ignoring Marcus’s clear love of the hobby.
Douglas slowly encourages Marcus to keep practicing, and Marcus starts performing shows for Douglas, who finds it hilarious and keeps on encouraging Marcus to continue, even when they should be focusing more on the mission of capturing Douglas’s kids, and at some point, Douglas starts to momentarily forget he didn’t program Marcus with feelings, unaware that Marcus has always been feeling things, they just didn’t understand it.