Watched this last night and I love the whole movie, but the absolute chaos and familiarity of the first half hour is amazing. There was a bit of a lull in the middle, but the movie was definitely a lot of fun. Our favourite thing is how everyone just seems to accept that they're drive-in people now, including the love interest with practically no encouragement, but when Crabsie floats the idea of trying to get out everyone is incredulous.
Also the idea of towies fighting for wrecks and fighting off roving hordes of carboys is a lot of fun.