Here's a documentary about people in NY, NY during the year 2000 who drank in bars during the AM hours. Most NYC bars during that era offered first calls, so the bar opened and would serve alcohol starting at 8 am. Ah the good old days.
Did co-directors Christopher Diiorio and Joe Malone partake in alcohol drinking during the making of First Call you ask? Well, er, yes they did. This was in order to relate on the same environmental level as the interviewees in the film, plus they were really really thirsty all the time.