Chris Pratt made his 'Guardians 3' costar cry after his coffee spilled all over her expensive purse

• Chris Pratt's coffee cup accidentally spilled all over Pom Klementieff's expensive purse.
• "Guardians of the Galaxy Vol. 3" director James Gunn shared the story during a press conference.

Chris Pratt made "Guardians of the Galaxy Vol. 3" costar Pom Klementieff cry after accidentally spilling coffee all over her designer purse, but the star wasn't upset because of her soiled bag.

During the "GotG: Vol. 3" virtual press conference, attended by Insider, director James Gunn closed out the event by recounting an incident that happened when some of the cast were together on a plane a few days earlier.

As they prepared to take off, Gunn said Pratt, who has played Peter Quill/Star-Lord in the Marvel Cinematic Universe since 2014, brought a cup of coffee aboard.

However, he failed to properly secure it before the plane departed.

"Chris is a clumsy oaf," Gunn said of the actor. "He doesn't put his coffee in the cup holder. He puts it on the armrest."

Meanwhile, Klementieff, who plays Peter's half-sister Mantis in the "Guardians" franchise, had been carrying around a purse she was receiving compliments on throughout the week.

"It's a very cool purse that happens to be very expensive," Klementieff added.

"The plane takes off and, you know, planes. Chris has maybe never been on one," Gunn continued explaining while playfully disparaging Pratt. "He doesn't realize that sometimes planes tilt in different directions."

"His coffee slid down and fell all over Pom's expensive, beautiful purse that we've all been complimenting for a week and Pom's a little irritated with Chris, as she should be," Gunn said.

"We clean it up and then we're flying for another, I don't know, maybe, 10 minutes. And all of a sudden, I'm sorry to embarrass you, all of a sudden Pom bursts into tears and she goes, 'I'm so sad,'" Gunn said. "Chris and I look at each other and go, 'You really screwed up.'"

Klementieff didn't explain what the purse looked like. However, the actor was spotted carrying a cute dog-shaped bag at the movie's South Korea premiere on April 19 not long before the Los Angeles press conference on April 28.

If that is the purse, the Thom Browne shoulder bag retails for $1,590.

But it turned out Klementieff wasn't upset because of the coffee spill.

"We thought she was sad about her purse getting wet," Gunn told the press. "And then she said, 'I feel like something is ending.'"

Klementieff was sad because the "Guardians of the Galaxy Vol. 3" press tour marked the culmination of the cast's time together. The Mantis actor has been part of the "Guardians" family since 2017.

This will likely be Gunn's final "Guardians" movie. The writer-director is now co-CEO of DC Studios.

"It's funny because I wanted to hide in the bathroom and cry," Klementieff said. "Sometimes it's like mourning. Sometimes it just comes at unexpected moments and you just can't control it."

"I couldn't contain it and I wanted to hide in the bathroom to cry, but Karen was in the bathroom," Klementieff said of their "Guardians" costar, Karen Gillan who plays Nebula.

Klementieff added: "It felt like the end of something."

"Guardians of the Galaxy Vol. 3" is in theaters now. You can read our review here.