'Weird Al' Yankovic and Lauren Graham were said to appear as part of the live-action cast as Marla and Charlie's parents.
Marla's passport has an issuance date of June 14, 2015 and lists her date of birth as July 11, 1996. In the opening scene, she sings that she's 18-years-old. This means that the opening scene takes place between June 14th and July 11th, 2015 during Marla's last month of being 18-years-old. The rest of the movie takes place "four years later", with the banner outside the toy fair specifically dating it as June 7-9, 2019.