Ragtime, Open Air Theatre, Regent's Park, London
Open Air Theatre, Regent's Park, London: Repertoire and A Midsummer Night's Dream are both back at Regent's Park this year, but whereas the now annual musical usually comes last it has opened proceedings this time around. So a lot is riding on Ragtime, the 1997 Broadway show that is this year's chosen musical, and director Timothy Sheader freights it with even more significance in every sense, from bud…