The actor was visibly taken aback

Matthew McConaughey was visibly shocked after being told the sad news about his former co-star Sam Shepard’s death for the first time during a red carpet interview.

The American actor was at the LA premiere of his new film The Dark Tower when a reporter asked him how he felt about the acting legend’s death – to which his baffled reaction was caught on camera.

‘Sam Shepard moved on?’ the 47-year-old responded, before asking: ‘Gosh damnit, from what?’

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The Hollywood actor – who starred alongside Shepard in 2012 movie ‘Mud’ –  then held back tears as he paid tribute to the 73-year-old who died following complications with ALS last Thursday.

‘Look, I’m not going to trivialise that situation’ he replied,I just heard about it for the first time.’ 

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Clearly still processing the news, the dad-of-three went on to praised his co-star for his captivating talent in their movie, adding: ‘But I always told [director] Jeff Nichols this – in Mud, the whole trailer for Mud could be Sam Shepard sitting in that green chair telling the boy about who Mud is.

‘It would be about a two-and-a-half minute trailer, but it would have been really badass. He moved on today? Damn’.

In a final show of emotion, the Magic Mike actor put two thumbs up before pointing to the sky and said:We lost one of the great ones. Great writer, great mind.’

Before adding: ‘Alright, see you in the next one, Sam.’ 

You can watch the sad exchange here.

Sam’s family announced on Monday that the Oscar-nominated actor died at home in Kentucky. Sending our love to all his friends and family.