When Pam is sitting on the couch with Louie, she is wearing Pootie Tang's belt from Pootie Tang (2001). Louis C.K. wrote and directed that film.
The school scenes were shot in the actual school that C.K.'s children attend.
David Patrick Kelly was originally supposed to appear in just one scene. But C.K. enjoyed working with Kelly so much that he quickly came up with more scenes during shooting.
A scene was filmed in which Nancy ('Nancy Shayne') confronts Louie about scheduling a playdate with her son. But the scene was deleted.