Initial casting

my original idea for casting roles for my music video was to ask my brothers friends who are students in their last year of university. this was due to their stereotype as students and also those who are interested in music, however my brother has told me that so far all the people he has asked are not interested so this had unfortunately delayed my progress of getting closer to beginning filming and also but me back a step as i have to find people willing to contribute who take it seriously and will be reliable. - this is proving to be quite hard!