Several production still of the movie's characters are hidden somewhere on this anime disc from Pioneer. Where? Simply press the 'Angle' button on your remote control and you should be able to see those single frame stills in all their beauty.
Watch the closing sequence (starting from where Washu asks Mayuka's crystal what it wants to do) using the second angle and you'll see the (what I assume) is the original Japanese closing credits; the neat thing about this is that the drawings now take up two-thirds to three-quarters of the available screen with the text scrunched into what little remains on the right.
All easter eggs were generously submitted by SirDonk