Hi Jakub,
The goal of the recordings is to provide a means for people who cannot attend the conference but would like to see the speeches or for archival purposes, whereas the film I shot let's people, attendee or not, grasp a glimpse of the atmosphere at the conference. This is especially nice to watch months after a conference.
<silence> I just watched that movie and it's indeed very well done. Both the quailty of the image (colors, light,..) and the "storyline" kept me watching untill the end.
tl;dr: Would the FOSDEM be interested in a film like the one the Libre Graphics Meeting got here http://vimeo.com/18568225 ?
Certainly ! We tried to do this in the past and captured some video fragments of the atmosphere but noone was able to make something usable like you did. Such a video/movie, if it's created, will very probably find its way on the website and the YouTube FOSDEMtalks channel (http://www.youtube.com/fosdemtalks)