According to our gracious hostess, Hollywood is a local institution. The place has been around for 20 years but is still packed, even on a Tuesday night. We had a hook-up since our hostess knew the promoter, and he got us in for free without waiting in line. Otherwise, it would've been expensive and a long wait, since the line was huge. The place was definitely packed with tons of people and a very mixed crowd. The only drawback is that, since there's no drinking age, there quite a few young bucks. Unlike the US, though, they were just dancing, not getting into fights. So get there early and ready to dance, since there was no place to stand and chill.
*Please note: Italians push and shove their way through without saying "excuse me." At first, it was very disturbing, but then you just go along with it and start pushing too.