The first hint at Carrey’s confirmation came fromthe director Jeff Wadlow, using a quote from Ace Ventura to announce the begining of shooting on his Twitter account:
“6 days till we start shooting… and we officially have our Colonel. Alrighty f’n then!”.
In addition co-creator and writer Mark Millar wrote a blog post regarding Carrey’s addition to the cast
“Matthew Vaughn, Jeff Wadlow and I did a conference call with Jim a couple of weeks back and we’ve been itching to talk about this ever since because the energy Jim’s going to bring to Colonel Stars has me buzzing as much as Nic Cage with Big Daddy.”