Big Mouth has been in the works for over a year and it looks like it all paid off. Nick Kroll and Andrew Goldberg's (Family Guy) series about prepubescent preteens dropping the pre-prefix isn't for the kids it's portraying. The script is very dark -- see the trailer for little boy butt and little girl talking vaginas. But it looks nice. The cast is one of the best on the service with Kroll being joined by Jordan Peele, Jason Mantzoukas, Fred Armisen, Maya Rudolph, Jenny Slate, and Jessi Klein. Big Mouth premieres on Friday, September 29th.