it is interesting that you say malcolm is the reason for all their publicity because in the movie they make him out to be a "fucking cunt".
i would have thought most of their publicity was coming from
1) the people they played to who were converted to their way of thinking by not giving a flying f'ck about what people thought of them which enticed more people into the world of punk.
2) the people who banned them from playing venues. by doin this they only made the newsfags say "sex pistols banned from here,m there and everywhere"
3) and finally by the band themselves, they created themselves and their own image and their own attitude, they were ABLE to not give a fuck about anything and this is how they got publicity, it made them stnad out in a world where everyone was jumping up and down like hyperactive kids with ADD and a pixie stick.
and as for their music being shit, well i dont think so, i reckon that they were great. yes John (sid)may have been the worst bass player even and yes johnny may have been a crap singer but when they got together they made something that just worked.
i'll take into mind what you said about the other films but you must admit that it is a pretty damn good film and it shows things that arent seen ofter. (like Johnny Rotten crying over the death of John (Sid))