Good idea. I always fancied the idea that, due to Ianto being quite affected by what happened we could have had him and Jack talking (poss with touching) in an emotionally intimate way at the end instead of the another old roll of film / Jack hears music, how creepy (not) stuff. Something like the end of Sleeper with Jack / Gwen or Captain Jack Harkness with Jack / Tosh. Your idea of them doing something at the beginning's probably better though.