IT is one of the most expensive movies ever made and will bring the historic cobbled streets of Edinburgh’s Old Town to the big screen across the world.

Hundreds of staff have arrived in the capital for the six-week shoot of the new £397 million Marvel Avengers superhero movie, Infinity War.

Film Edinburgh has estimated the shoot will bring £10m to the Edinburgh economy, including financial impact on hotels and other services, as well as the hiring of extras.

They also say the directors have “made a concerted effort to minimise the impact filming has on the public, while securing the required shots needed for the film”.

The production of Avengers: Infinity War is the biggest film shoot in the city’s history.

The six-week production schedule will see more than 400 crew members working on location in Edinburgh’s Old Town, over the course of the shoot, which got under way with the film’s second unit on March 22.

The film’s first unit, with its main actors, will begin to work in mid April.

Avengers: Infinity War stars Robert Downey Jr, Chris Evans, Chris Hemsworth, Scarlett Johansson, Mark Ruffalo, Anthony Mackie, Jeremy Renner, Elizabeth Olson and Paul Bettany, although it is unclear if all of these actors will be coming to Scotland. The film is directed by Joe and Anthony Russo.

Joe Russo said: “When Edinburgh came up as a location option we jumped at the chance. The city is such a unique and iconic location, but one never seen as the backdrop for a big action film, which is incredibly exciting.”

“The support from all local agencies, such as Film Edinburgh, has been invaluable in helping to coordinate this complicated shoot,” added Anthony Russo. “We appreciate the entire city’s help.”

Gavin Barrie, Edinburgh’s economy convener, said: “Our cobbled streets, historic properties and stunning green spaces could set the scene for some of cinema’s greatest superheroes and it is fantastic to secure such an A-list production.

Rosie Ellison, Film Manager for Film Edinburgh, added: “This clearly demonstrates Edinburgh has the infrastructure and process in place to accommodate major filming of this scale. The production team have been a pleasure to work with and have been considerate of the impact of filming on local business, visitors and residents.”

Film Edinburgh has reported its most successful year with 2016 productions injecting £7.7m into the local economy, an 11.5per cent rise on 2015. figures.