Leiston is an English community in the East Suffolk non-metropolitan district of Suffolk, near Saxmundham as well as Aldeburgh, about 2 miles (3 km) from the North Sea shore, 21 miles (34 km) north-east of Ipswich as well as 90 miles (145 kilometres) north-east of London. The community had a population of 5,508 at the 2011 Census. Given that the closure of Garrett's, the town's economic situation has actually been dominated by 2 nuclear power stations on the coast at Sizewell: the currently decommissioned Magnox activators of Sizewell An and the a lot more modern Pressurised Water Reactor of Sizewell B. A number of smaller business run from industrial parks within the town. Leiston's High Street serves as business and market hub of the bordering agricultural district. The town's centers consist of a post office, library, financial institutions, pubs and also a range of stores and also various other services. Leiston Film Theatre, a half-timbered building with street front stores, is the earliest purpose-built movie theater in Suffolk. The movie theater is possessed and run by Leiston-cum-Sizewell Town Council as well as supported by the Leiston Film Theatre Support Club, which has actually raised money for stage repair and made it possible for the movie theater to set up the most recent electronic 3D projection system.