Easter Film Hop & Midsummer Night Screen, London
No, there's nothing wrong with your calendar. This was supposed to happen at Easter, but being outdoors and in Britain, it was inevitably rained, hailed and snowed well and truly off. So here it is again: three days of dance-related screenings in a converted Shoreditch car park, with the emphasis on standing up and shakin' rather than sitting down and nodding. On Friday it's a "concert-style" screening of Prince's mighty Purple Rain, including I Would Die 4 U, When Doves Cry and Let's Go Crazy, followed by a sing-along Grease, and a dance-along version of Dirty Dancing next weekend. There will be dance trainers on hand, street food and cocktails, and "fancy dress is encouraged but not enforced".
Leonard Street Car Park, EC2, Fri to 26 May
The Invisible Lighthouse,