Daniel Radcliffe and Sandra Bullock reflect on their 'terrifying' first red-carpet experiences: 'Sweating, a lot of shvitzing'

• Daniel Radcliffe and Sandra Bullock costar in "The Lost City."

• The pair were asked to recount their first red-carpet experiences in an interview for the movie.

Daniel Radcliffe and Sandra Bullock shared what their first times on a red carpet were like in a new interview with PopSugar.

"I remember the feeling of needing to go pee," Radcliffe recalled. "There's always a pee factor," Bullock added.

"I remember really not being happy," said Radcliffe, who became an instant child star after he was cast in the first film adaptation of the "Harry Potter" series.

He was only 11 when he first took on the role of the boy wizard and went on to star in each of the eight fantasy films in the series, becoming a household name in the process.

"The first premiere I ever went to was just terrifying," he continued. "It's really terrifying," Bullock agreed.

While Bullock was older than Radcliffe when she came on the scene, she has starred in a series of high-profile films that drew major media attention throughout her career, which was stressful for her as a newcomer.

She recalled "the judgment and the looks of not having pulled off what they want you to pull off," and "answering a question in the wrong way" causing "sweating, a lot of shvitzing."

"I remember my whole body vibrating," said Radcliffe.

"For a kid, it is traumatizing," said Bullock.

"The Lost City" is in theaters now.