[Missilebuster]

They were speaking about a movie they saw (Chidori and kurz saw the movie, i dont think sousuke did) anywho three people are running away (from some bad guys of some sort to s. america or something like thate), and in the final scene they rush out from behind a barricade they have been pinned behind to meet the overwhelming amount of bad guys head on (thats how it ends, no denouement or any telling of how they got out of it if they did). They were reminiscing on how this situation mirrors there own, and they decide to rush out and go out guns blazing. Anywho Kurz seems to remember how the Female character was civil and nice to the playboy character (another name for a playboy character is a flirt). So she was smiling because of the contrast between what she did and what her "character" did (she just punched him), not because they were flirting - neither in the anime nor in the old movie.