 The scene in which Annette slaps Sebastian was also unscripted.  Reese Witherspoon (qv) and Ryan Phillippe (qv) were so into  their scene that she slapped him unexpectedly, and Phillippes  reaction is genuine. He was so into the scene that right after the  director said cut, he went behind the set and threw up. The director  left the scene in the final cut.