You want brits to be thought of as eccentric people with emotional issues, suppressed by their wives and with a fetish for giving beats to people from Barcelona?????
There are quite a few films that portray us badly but there are just as many if not more that portray us well. For example how cool is James Bond??? and with British films getting more recognition than ever (italian job, trainspotting, bend it like beckham, bride and prejudice, lock stock, snatch, etc.) I don't think a small scene in die hard will do much harm.
I should think they see lots of TV over there too, including music artists, etc.