Continuity mistake: When Jaime and Aurelia are in the lake, after she warns about the eels, Jaime's hairstyle changes between one frame and another.
Continuity mistake: Toward the end of the film when Sam reaches the gate from which Joanna and her mother are departing, he looks down to see them in the boarding line with several people behind them. When he races down to say goodbye, Joanna is last in line.
Answer: No, Keira Knightley's character is not in love with the best friend; her kiss is one of compassion and affection, not love. Richard Curtis mentions this on the DVD commentary - he says something about Juliet being the sort of girl who would be used to men falling for her and treating them gently and kindly, which is what she does here.
STP ★