Year One was originally rated R, "for some sexual content and language" by the MPAA. Apatow and Ramis appeared before the board to appeal the rating to a PG-13 but it was upheld. After the filmmakers made cuts to the film, it was rated PG-13, "for crude and sexual content throughout, brief strong language and comic violence." It opened at #4 at the US box office in its opening weekend. The film eventually grossed $43,337,279 in US ticket sales, and a further $19,020,621 worldwide, for a total of $62,357,900, and when compared to its $60 million budget, Year One was a box office disappointment.