Robert De Niro, 77, wears leg brace as he is spotted for first time since ‘excruciating’ injury on set of new Martin Scorsese film

Leonardo DiCaprio was originally slated to play the lead role, FBI agent Tom White who investigated the killings, but he lobbied to have his role changed.

Jesse Plemons came aboard to play White, while DiCaprio plays Ernest Burkhart, the nephew of De Niro's character William Hale.

The cast also includes Tantoo Cardinal, Pat Healy, Scott Shepherd, Lily Gladstone and Sturgill Simpson.

The film will be the 10th feature film De Niro and Scorsese will have worked on, a relationship that goes back to the early 1970s.