FLASHBACK: Mark Wahlberg and Leonardo DiCaprio Are BFFs on the Set of 'Basketball Diaries' in '94

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It's been 20 years since The Basketball Diaries hit theaters.
ET was on set with the adorably young actors, 22-year-old Mark Wahlberg and 19-year-old Leonardo DiCaprio, as their epic, A-lister friendship began to blossom back in 1994.
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How cute are they?
Their friendship continued over the years. They reunited on the big screen for The Departed in 2006, and still remain friends today, hugging it out whenever they see each other.
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And just like she is today. Back then, Leo’s mom was right by his side.
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Even though Marky Mark and Leo kept it light and fun on set , they had to get serious with some heavy subject matter in the movie.
DiCaprio starred in the true story of Jim Carroll, a high school basketball star who develops a heroin addiction with his troubled group of friends – which includes Mickey, played by Wahlberg.
“When I read the script it was one of the best things I ever read for somebody my age in a long time,” DiCaprio told ET on set. “It's basically the story of how he slowly started to destroy himself with the drug and he started to live on the street and prostitute himself.”
“I think this is the role where it doesn't have a happy ending,” said Wahlberg. “it's so real in a lot of ways.”
Check out this video for more on set with Mark and Leo.