The Shuffle Festival at Mile End has music and cinema on Sat 26th Aug and Sun 27th.
The London Metropolitan Brass Band is playing from 2-4pm on Sunday 27th Aug at the Bandstand in Victoria Park.
The East London Waterways Festival takes place on Monday 28th August in the Olympic Park 12-6pm.
The Gladiator Games are coming to the Guildhall Yard. You can book here. The Museum of London have put up a brilliant video here.