This cel is actually not from Clamp Campus Detectives, but is from "Clamp in Wonderland", a very cute short film full of all the Clamp characters that existed at the time it was made. There's a scene where the three CCD boys catch the three Magic Knights from Rayearth. Utako isn't going to stand for Akira hanging around with another girl, and swoops down on a star to scoop him up (those are his feet hanging over the edge). One of my happier bargain-bin finds. :-) I need to find my copy of Clamp in Wonderland at some point to make a screencap. Someday I'd love to get a cel from the "catch" scene!