Surprise

If you're in the mood for a good pub crawl/robot movie, try "The World's End." I saw a trailer for the 2013 movie and immediately put it on my Netflix queue. What's not to like for this Anglophile? I thought it would be a bittersweet, nostalgic British comedy about high school friends getting back together for a lively evening of drinking in their home town, resolving old differences and regaining some of their dormant sense of fun.
Which it was, until about 45 minutes in, when a fistfight ensued in the men's room of a pub and the group's leader punched a surly teen. The boy's head came off like a Rock-em Sock-em Robot, revealing that the lad and his mates were all alien (that could sober you up quickly).
I checked online and found that I had stumbled into a sci-fi franchise called the Cornetto Trilogy, also comprising "Shaun of the Dead" (2004) and "Hot Fuzz" (2007). The summary on IMDB says it all: "Five friends return to their hometown to relive a pub crawl they never finished in their youth; however, they find their town has been invaded by interstellar beings 'Blanks' and the crawl could literally kill them. ..  As they attempt to reconcile the past and present, they realize the real struggle is for the future, not just theirs but humankind's."