Creating a Seamless and Endless Moving Background in Flash

Very often, you want to create a flash that looks like something or someone is moving, walking, or driving against a background that changes (like a dolly shot in a film). In flash this is done by providing a wide, short background that loops - but it's hard to get it to look perfect.

This tutorial which uses a little bit of easy actionscript creates a PERFECT scrolling background. This effect can be used for other things too - like the changing background of a short film, or an abstract piece.

http://www.pixelhivedesign.com/tutorials/Endless+Scrolling+Background/