I\'m trying to animate an image\'s height (from height of 0 pixels to 480 pixels) to create the effect of the image being rendered top-down.
With an UIImageView i notice
You may want to check out Animation Blocks. They're documented quite thoroughly here:
http://developer.apple.com/library/ios/#documentation/WindowsViews/Conceptual/ViewPG_iPhoneOS/AnimatingViews/AnimatingViews.html
All the code there is relevant, because UIImageView is a subclass of UIView.
Happy coding.