The Sony Animation technicians developed a new tool called Shapers that permitted the animators to reshape the character models, allowing for stronger poses and silhouettes and subtle distortions (squash and stretch, smears, etc.) typical of traditional, hand-drawn animation.
This is the only Open Season film to have a theatrical release. It's sequels Open Season 2 (2008) and Open Season 3 (2010) were not released theatrically, instead being released straight-to-dvd, which both only took 2 years to make.
Cody Cameron used a similar voice for Weeny that he used for the 3 Pigs in Dreamworks Animation's Shrek franchise. Cameron used to work for Dreamworks Animation up until 2004 when he moved onto Sony Animation while they were still in early production of Open Season (2006).
This was Sony's 11th number one opening movie of 2006. It performed particularly well at IMAX theaters where it took in about $1.4 million. This averages about $22,000 per screen versus $6,000 for conventional theaters.
Matthew Taylor who voiced Buddy and Deni would later take over Patrick Warburton and Jon Favreau as Ian and Reilly respectively in the straight-to-DVD sequels, as well as Elliot in Open Season 3 (2010) and the Open Season video games. He'd even go under the additional voices in various later Sony Animation films (except for Surf's Up (2007) and Angry Birds (2016) where he was outside the additional voices for who he voiced in those films).