We all know and love Shrek and can't imagine the big green ogre sounding any different from the Scottish brogue that Mike Myers dons for the role. Well, without one costly request from Mike, our beloved ogre could have sounded a whole lot different.
The making of the movie was already disrupted by the tragic death of Chris Farley, who'd originally been cast as Shrek, so Mike came in and asked for the script to be rewritten to fit his comedic style. After this was done, he recorded pretty much all of his lines for the movie in 1999. When a rough unanimated version was shown to Mike though, he had one major request: to re-record all of his dialogue.
The problem for Mike was that he'd done it in an over-the-top Canadian accent, which he said came across more scary than relatable. He believed the Scottish accent would work better, and thought that it would be easier to go from sounding happy to angry.
At this time though, they'd already started animating his character and had gotten through about a third of his scenes, which would all require mouth and hand gesture-tinkering animation.
Jeffrey Katzenberg of DreamWorks Animation realised the amount of thought Mike had put into it, so relented, and approved the reanimation that would cost around $4 – $5 million, 10 percent of the budget. After it all came together, Jeffrey fully agreed that the accent was far better, saying that if they had junk before, they had gold now.