Hill and Stone were spotted wearing 1980s style clothes and hairdos. It looked like he had slimmed down even more from when photographers caught him in New York City in July.
The Knocked Up funnyman, 33, sported a wild mullet for his new movie and appeared to be having a fun time.
But what really got onlookers' attention was how skinny Hill looks right now. Sources have said Hill is happy buying new clothes for his new body.
Hill's leaner look is a far cry from 2015, when, as Radar reported, sources said his friends were worried as his weight gain exceeded 300 pounds.
The Wolf of Wall Street actor's "up-Hill" battle with the bulge has been going on for years, as Radar has reported.
Sources have previously told the National ENQUIRER that the brilliant 5'7" comedy star tends to yo-yo and eat with reckless abandon.
Hill revealed that he asked his 21 Jump Street co-star for fitness advice. He told Jimmy Fallon on The Tonight Show, "I wanted to get in better shape, so I called Channing Tatum and said, 'Hey, if I ate less and go to a trainer, will I get in better shape?' " Channing said of course -- and apparently Hill was set on his way to better health.
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