City Lights Aborted

This evening I took the girls to see a Chaplin film, City Lights (1931), but with a difference: it was screened in a public square with live music conducted by Timothy Brock. 
It was all going so well. The traffic was bad but we got there in time, Plaza Santa Domingo provided a beautiful setting, there were front row seats reserved for us. The film/music began, A&N were really liking it, it got to the bit where he meets the blind flower-seller and... then it started to rain.
Now in Britain there'd be a contingency plan. End of March: high chance of rain. But in Mexico it hardly ever rains at this time of year. So no cover, no alternative venue, concert aborted. We returned home and watched it on YouTube. Not the same.