Singer tweets first pics from Days of Future Past

Bryan Singer has dropped a first look at his 'X-Men' sequel 'Days of Future Past' on Twitter.

The director snapped a picture of the two wheelchairs for his two Professor Xs in what appears to be the production office for the movie.

[Related story: Dinklage playing villain in X-Men sequel]

“Hello old friends #XMen #DaysofFuturePast,” he wrote, accompanying the picture.

As the sequel takes place across alternate dimensions, both Sir Patrick Stewart, who played Professor Charles Francis Xavier in Singer's first 'X-Men' films, and James McAvoy, who played the younger Xavier in 'X-Men: First Class', will be able to share the role.

It follows news that 'Game of Thrones' star Peter Dinklage has joined the cast, though his role is so-far unspecified. Rumours abound that he will play Bolivar Trask, the military scientist who created the mutant-hunting robots, the Sentinels.

He joins a stellar cast, which includes McAvoy, Michael Fassbender, Jennifer Lawrence, Hugh Jackman, Sir Ian McKellen, Anna Paquin and Ellen Page.

It's due out on July 18, 2014.