Jon Favreau did his own cooking by training with food truck chef Roy Choi. Choi sent Favreau to a week of intensive French culinary schooling, where Favreau sharpened his knife skills and learned how to make sauces. "I brought him into the kitchen, and he just kind of fit in," Choi recalls. "I threw him a couple tests, like a case of chives, or a case of onions, or peel two cases of avocados. Just to see where his mind and his situation and his abilities were and how interested he was in these things. He just attacked them. He really became a part of it."
When Carl and Molly are talking outside the bar, Molly told Carl that he wasn't 'happy' and that she wants him to be 'happy'. A possible nod to Jon's character Happy in the Iron Man movie series.
This is the second time Jon Favreau, Robert Downey Jr and Scarlet Johansson all worked together on a project directed by Jon Favreau. The first was Iron Man 2, then they worked together again albeit without Jon Favreau as a director on Iron Man 3z
Percy says he edits a single 1 second video clip from each day to form a video montage. When his dad, Carl, watches the video later, there are clearly multiple clips from the same day, most noticeable with the New Orleans clips. There are several single seconds of them in New Orleans, but appear to be from the same day.