In the "Create Your World" screen directly after hitting the New Game button, there is an animation (WorldVid_Default.bik) that pans the foreground so that it moves slowly to the right.  If the animation is given time to pan all the way to the left, it will immediately jolt back to the right (i.e. play the video again from the start), which is pretty jarring.  In contrast, the title screen background animation (TestSetupBGMovie.bik) pans back and forth between the river and the volcano, so the animation loops smoothly.

I know that most people are unlikely to ever sit at that screen for a full two minutes, but it would be a nice touch of polish if the world creation video were run both backward and forward to avoid the jarring transition after two minutes.

On a related note, the Elemental intro video from the beta (BetaIntro.bik) is still being distributed in the standard "Movies" directory.  I had uninstalled between beta and release, so it must have been downloaded with the release package.  I feel pretty safe assuming that it's not used in the release version.