‘In Texas, It’s a Coming of Age’: McConaughey’s Gross Chalamet Prank

Timothée Chalamet has revealed the crudest send-off in Christopher Nolan’s filmography: on his final day shooting Interstellar, co-star Matthew McConaughey left a “huge turd” in his trailer toilet as a farewell prank.

“I felt so disrespected,” Chalamet recounted during a town hall with McConaughey produced by Variety and CNN at the University of Texas at Austin, a story that has been blowing up online ever since.

The Story, in Chalamet’s Words

“I gotta say, my last day on Interstellar, I was sad to be leaving. In my trailer, I went to the bathroom, and there was a huge turd in my toilet,” Chalamet said. “I felt so disrespected. Like, ‘I know I’m not the star of this movie, but who’s coming in here?'”

The then-17-year-old launched a full investigation:

“So I went around to all the grips, these big guys, and I said, ‘Hey, one of you let it loose in my trailer.’ They said no. I went up to Nolan, and he pointed to Matthew, and Matthew had this devilish grin on his face. I said, ‘Why’d you do that?’ You said, ‘In Texas, it’s a coming of age, baby.'”

McConaughey’s one-word response at the town hall sealed the bit: “Souvenir.” Chalamet confirmed: “That’s a true story.”

The Internet’s Verdict: Divided

Social media reaction split between horror and hysterics. “That’s hilarious. if you’re twelve,” one X user wrote, while another called the act flatly “disgusting.” Others found the framing irresistible: “Christopher Nolan pointing straight at Matthew while he grins might be the funniest part of this whole story,” and, inevitably, “McConaughey really said ‘alright, alright, alright’… and left Timmy a Texas souvenir.”

No Bad Blood: A Mentor and His Protégé

The prank story emerged from an otherwise warm reunion. Chalamet, who was 17 and freshly out of high school when he played the young Tom Cooper, son of McConaughey’s Joseph Cooper, told his on-screen dad: “You had no reason to be warm to me.”

McConaughey remembered it differently: “You were pretty easy to be warm to. You had what I felt like was a feverish curiosity… it seemed obvious to me that no matter what you were dealing with, you were going to make your way.”

He was right. Chalamet, now 30, is up for Best Actor and Best Picture at this year’s Oscars for Marty Supreme, his fourth Oscar nomination, making him the youngest actor with three Best Actor nods since Marlon Brando. McConaughey even praised his disruptive Marty Supreme marketing: “You’re doing fashion ads. You’re using smaller media.”

Why Interstellar Still Means Everything to Chalamet

Trailer souvenir aside, Chalamet calls Interstellar his favorite project ever, and Nolan his favorite director: “The Dark Knight made me want to act. Inception inspired me. When I read the script to Interstellar, I thought it was gonna change the world.”

His devotion runs deep: he once admitted he “wept for an hour” after an early screening upon realizing how small his role was, and girlfriend Kylie Jenner surprised him with an Interstellar screening for his birthday in December. “I love that movie, man,” he said, grumpy 30-minute drive and Texas souvenirs notwithstanding.

Timothée Chalamet says Matthew McConaughey put a huge turd in his toilet on his last day of filming Interstellar:

“I felt so disrespected.”

“I went up to Nolan, and he pointed to Matthew. I said, “Why?” Matthew said, “In Texas, it’s a coming of age, baby” pic.twitter.com/LvSj4GoXfP

— Emir Han (@RealEmirHan) July 10, 2026

FAQ

What prank did Matthew McConaughey pull on Timothée Chalamet?

He left a “huge turd” in Chalamet’s trailer toilet on the young actor’s last day filming Interstellar, later calling it a “souvenir.”

How did Chalamet find out it was McConaughey?

After questioning the grips, he asked Christopher Nolan, who pointed straight at McConaughey, grinning.

What was McConaughey’s explanation?

“In Texas, it’s a coming of age, baby.”

Where did they tell this story?

A Variety and CNN town hall at the University of Texas at Austin, where McConaughey is a professor, aired on February 21, 2026.

Who did Chalamet play in Interstellar?

The young Tom Cooper, son of McConaughey’s character, was played by Chalamet when he was just 17.

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