Matthew McConaughey shares throwback for Woody Harrelson’s 65th birthday

Matthew McConaughey marked Woody Harrelson's 65th birthday by sharing a nostalgic throwback photo and a heartfelt message celebrating their decades-long friendship.

The Oscar-winning actor posted the tribute on social media, affectionately referring to his longtime friend and frequent co-star as his "brother."

McConaughey shares heartfelt birthday message

Alongside an old photo of the pair, McConaughey wrote:

"From another mother? Happy birthday brother."

The playful caption referenced the close bond the actors have shared for years, with the question mark nodding to their long-running joke that they could actually be related.

The pair once discovered they might be brothers

McConaughey previously revealed that a conversation during a trip to Greece sparked speculation that he and Harrelson could be biological brothers.

He recalled his mother telling Harrelson, "I knew your daddy," prompting the pair to look into the timeline of their parents' lives. While they have spoken openly about the possibility, neither actor has confirmed any biological connection.

McConaughey has also said their families often mistake photos of one actor for the other, highlighting just how close they have become over the years.

'Brothers' reunites the longtime co-stars

The longtime friends are set to reunite in Apple's upcoming comedy series Brothers, where they will play fictionalised versions of themselves.

The series follows the duo as their lifelong friendship is thrown into turmoil after they discover they might actually be siblings.

The project marks another collaboration for McConaughey and Harrelson, who previously starred together in HBO's acclaimed crime drama True Detective.