Paul Mescal appeared to indulge in an illegal substance while partying at the Glastonbury music festival.
The “Gladiator II” star, 28, was seen in a video obtained by the Sun Monday dipping his finger into a small bag and then putting it up to his nose to take a sniff.
“Paul looked like he used a key to scoop some substance out of a bag which he lifted to his nose and sniffed,” an eyewitness also alleged to the outlet.
“He did it once then he dipped the key back into the bag and lifted it to his nose and sniffed again.”
The source further claimed, “Paul didn’t seem to care if anyone could see him. He was dancing and laughing with his friends.”
Mescal appeared unaware that he was being filmed at the time, as he was listening to The National’s set.
Page Six has reached out to his rep for comment but did not immediately hear back.
Another video shared on TikTok shows Mescal wearing the same outfit as in the incriminating video.
The “All of Us Strangers” star wore a wool sweater, black running shorts, a tan cap, ankle-high socks and Adidas sneakers.
In the TikTok clip, Mescal graciously posed for selfies with fans and flashed a big smile at them.
The “Foe” star was reportedly also seen hanging out with Saoirse Ronan, Daisy Edgar Jones and India Mullen when Coldplay hit the stage.
In another TikTok video, he was seen jamming with Jones, 26, his “Normal People” co-star, while wearing shades as green club lights surrounded them.
Mescal has not addressed the alleged drug use accusations.
Following his fun weekend at the festival, the “AfterSun” star was spotted on what appeared to be a date with Gracie Abrams in London, per photos obtained by TMZ.
The outing comes a month after cheeky photos of him laughing and chatting it up with newly divorced Natalie Portman at a bar in north London were released online.
While reps for the pair declined to comment, a source told us at the time that they were “just friends.”