Tinseltown, the American diner and milkshake bar chain, has returned to the expansion trail and is set to open two new sites over the next three months. The company, which was founded in 1996 by Sheeraz Hasan and opened its last site in spring last year, will launch its sixth unit next month (November) in London’s Great Portland Street. The new 80-cover site will be joined at the turn of the year by the group’s second outlet outside the capital, at Birmingham’s Star City scheme. The group currently operates sites in Bayswater, Farringdon, Gants Hill, Hampstead and Leicester.