Director Seth Kearsley said all of the product placements were used without permission from their respective companies.
According to Doug Walker, Seth Kearsley sent him an e-mail following Walker's review of the film, revealing that Kearsley wanted certain scenes cut from the film, but they tested well with audiences and were not cut as a result, specifically noting a scene involving deer and feces. He also noted that test audiences hated the voice of Whitey, but they did not wish for the voice to change.
Many animation fans have noted the design style of the characters in Eight Crazy Nights is similar to the design style of the characters in O Gigante de Ferro (1999). The majority of the animators that worked on this film were laid off from Warner Bros. Feature Animation (which produced The Iron Giant) and Fox Animation Studios.
Davey's parents are voiced by Adam Sandler's parents, Stan Sandler and Judith Sandler. This is Stan's only film appearance. He died in 2003 and his memory was dedicated in another Adam Sandler film, Como Se Fosse a Primeira Vez (2004).