Shrek and Fiona may have finally ridden off into the sunset for the last and final time, but some of the tricks that Dreamworks integrated into the movie will be talked about for some time.  Over at CGSociety, they talk to VFX Supervisor Doug Cooper about some of the tricks you have to feel to believe.

“For example, there’s a moment when Shrek does his roar at the birthday party and he’s screaming this terror out at the audience. We are playing Shrek’s face large in a close-up, hanging in front of the screen in front of the audience while he’s roaring. When he settles down for a second we let him drift back behind the screen, so subconsciously we are giving the audience some distance from Shrek.” When you watch it you don’t see it, but you feel it. It’s as if the space opens up and there is an uncomfortable silence between you and Shrek.

via CGSociety – SHREK Forever After.