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Ryan Reynolds and Hugh Jackman

Hugh Jackman and Ryan Reynolds are using their long-running funny feud for good, as part of a new charity campaign for American retailer Sam's Club.

The Wolverine star took to Instagram on Wednesday to share a clip of him facing off with the Deadpool actor on behalf of their respective brands, Laughing Man Coffee and Aviation American Gin.

"We're bringing our Feud to @samsclub. I only agreed to do this because it's for 2 great foundations," Jackman captioned the shot.

He added: "And, it's always an awesome day when I get to humiliate @vancityreynolds. More soon..."

In the footage, the two stare one another down, before turning their backs and pretending to be in a big huff.

The pair's friendly feud began when Ryan tried to convince his pal to play Marvel character Wolverine one more time for a future Deadpool movie, after Hugh announced 2017's Logan would be his last outing as the X-Men mutant. The two stars have since poked fun at and pulled pranks on each another in an ongoing series of hilarious social media skits.