Continuity mistake: When Amy is making the announcement and tells Marcus to go to hell, she slams the microphone down. When the customer says it's hot, Amy responds and throws her empty hands up. In the next shot her arms are down and in the following shot she's holding the microphone without ever having a chance to pick it up.
Continuity mistake: When Dina is eating the banana bread, she goes from holding most of a slice in her right hand in the shot looking at her, to holding a small chunk in her right hand in the shot from behind her, to having almost none left even though only four seconds have passed. (00:01:38)
Chosen answer: He's just gained weight. It looks like he slowly started gaining more weight around 2006 or so. In "Kids in the Hall: Death Comes to Town" (2010) he's noticeably heavier than his younger days (he was on SNL 21 years ago). By the time he was in "Man Seeking Woman" he looks very similar to how he looks in "Superstore."
Bishop73