Audio problem: At the graduation Fiona tells Scott that they need to talk. He says, "Yeah, about what?" and the shot changes and you can see he is mouthing "about what" again. (00:03:55)
Audio problem: When the four friends are in a French restaurant and Scotty, Cooper, and Jenny are trying to persuade Jamie to join them on their quest to Germany, Scotty's line is heard as "I Love Denmark," but his mouth forms the words "I Love Amster," as if he was in the process of saying Amsterdam before the shot changed.
Answer: There doesn't appear to be any significant overlap. Scott is hardly an uncommon name and seeing an actress from one film in another isn't exactly uncommon either - neither implies any greater link.
Tailkinker ★