The scene in Here on Earth is good, ableit brief. The scene starts with them laying in the grass in a field under a tree. Chris Klein starts sweet talking her and begins comparing her to the eastern seaboard. (you have to watch it, and its been a while for me). He starts out talking about Florida and while doing so casually flips off her sandle. As he continues his wooing he absently scratches the bottom of her sole starting from the heel and going to the balls of her foot. This elicits a laugh/giggle from her while her toes scrunch up. He then continues his flirting all the while kissing and nibbling as he moves up.
She has another foot tickle scene in a movie called "My first Mister" which is about as brief but better than "Here on Earth" because it has an awesome sole shot. Towards the end of the movie she is riding in a car with a guy, its a long trip for the two of them so he tells her that she needs to help keep him awake, so a few seconds later you see her with her bare foot facing him while he's rubbing a coke can on her sole with her eyes closed. (they were playing a game) She guessed correctly so he had to try something else. So with her eyes closed he leans in and licks her sole. She jumps and laughs from it. Again its a great scene, and the movie is pretty good too.
I hope this helped.