Robert De Niro wears MASSIVE platforms to play 6ft4 alleged hitman Frank Sheeran as he films The Irishman in NYC with Al Pacino

They have starred in a huge number of screen projects together over the years, including The Godfather Part II, Righteous Kill and Heat.  

And cinema icons Robert De Niro and Al Pacino reunited once again on Wednesday to film the upcoming crime drama The Irishman in the Bronx area of New York City - with longtime collaborator, Martin Scorsese, in the director's chair, the Daily Mail reports.

The 74-year-old De Niro wore a retro blue trench coat over a white collared shirt with a brown tie with diagonal stripes, as he embarked on another day of filming with his famous co-star. 

5ft10 De Niro wore black trousers and, most noticeably, black dress shoes with sizable lifts - with character Sheeran standing at 6ft4 - as he walked alongside Pacino in front of a large green screen.

In the period piece, which is based on based on the 2004 book I Heard You Paint Houses, De Niro portrays purported hit-man Frank 'The Irishman' Sheeran to Pacino's role of Teamster boss Jimmy Hoffa.