The hype around Bradley Cooper’s remake of A Star Is Born has been building since the movie was first announced, and it grew exponentially with the release of the first official trailer in June. Now, with just two months to go until the October 5 release date, Cooper and costar Lady Gaga are taking fans behind the scenes in a new interview.

According to Entertainment Weekly‘s Fall Movie Issue, one of the most striking scenes in the film is when Gaga’s character, Ally, performs a ballad at the Shrine in Los Angeles. And it was just as emotional to film as it is to watch.

“My very, very, very dear friend Sonja died of cancer that day,” Gaga told EW. “We were supposed to shoot in, like, 30 minutes, and I left the set because her husband called me and I could hear her in the background and I just got in the car and drove. I missed her by 15 minutes and she died.”

The singer stayed with Sonja’s family for a while at the hospital but eventually returned to set to film that scene at the Shrine. “When I came back, Bradley was so gentle with me and we got through it,” she recalled. “I performed the song. He was like, ‘You don’t have to do it again. It’s okay.’ All I ever wanted to do was sing. I’ll never forget that day. It was really a special scene, and I’ll always remember that moment.”

Cooper also spoke with EW about the movie — in particular, its themes of depression and addiction. “I mean, ultimately, it would be wonderful if it could impart some understanding of the human plight,” he said.

“I know that’s why I wanted to tell this story, so I could even help understand it myself. Also, to recognize that trauma is real, and traumatic events that occur especially early in life, if they’re not dealt with and aided, will have ramifications that go on and on and on and on.”

A Star Is Born hits theaters on October 5.

How many times do you think you’ll cry while watching A Star Is Born? Let us know @BritandCo!

(photos courtesy of Warner Bros. Pictures)