Directed by Matthew Vaughn, the 2014 film revolves around the adventures of a wayward tough (Egerton) from the wrong side of London who is taken in by a suave and sophisticated agent (Firth) and is turned into the best and brightest of operatives.
Egerton will return to the second part, which will move from London to US.
Firth is not due to come back at this stage as his character died in the first movie. (IANS)