In order to fine-tune her character Suzie's British accent, Alison Brie listened to recordings of readings provided by her British co-star Emily Blunt.
Jason Segel claimed that he was ordered to lose weight for the role, and was assigned a trainer. Ultimately he lost 35 pounds.
The photo used next to the 'City Eats' article about Tom's food truck is the actual promotional shot of Jason Segel for the sixth season of How I Met Your Mother (2005).
Zingerman's, the restaurant where Tom works after moving to Michigan, is a real delicatessen in Ann Arbor that first opened in 1982.
The "marshmallow test" that Violet shows to the professor and her fellow students during a meeting was not invented for a movie. It's a real long-standing psychological study used to see how little kids would handle issues such as temptation, self-control, and honesty. However, there is no evidence that a version that Violet suggests (one aimed entirely at adults with some element changed) has ever been carried out in real life.