Zac Efron has joked his close on-screen relationships with Michelle Pfeiffer and Nicole Kidman are "high-class problems".

The hunky actor stars in romantic comedy New Year's Eve, where he shares a kiss with Michelle. Zac is also acting alongside gorgeous Nicole in Lee Daniels' upcoming thriller, The Paperboy.

The star has joked that working with such beautiful actresses is an arduous task.

"It's high-class problems," he quipped in an interview with e! Online.

Zac loved been reunited with his Hairspray co-star Michelle. He says locking lips with the Hollywood beauty was a fabulous experience.

"I'll just say I am very happy. It was a lot of takes," he smiled.

Zac remained tight-lipped when it came to discussing Paperboy. However, he did admit that his and Nicole's characters' relationship "is very complicated."

"It's fun," he teased "We get to really have some fun."

Meanwhile, Jake T. Austin has discussed his involvement in New Year's Eve. The 17-year-old actor who is famed for his role on Disney's Wizards of Waverly - said his friends now think he shares a close bond with his high-profile co-stars.

"They think like we'll be hitting strip clubs or something," he said.

"It's nothing like that. Yeah, I can say I was in the same movie as all these people, but at the end of the day, it's not like I'm going home with Sofia Vergara."

New Year's Eve boasts a stellar cast including Zac, Michelle, Sofia, Lea Michele, Ashton Kutcher, Robert De Niro, Sarah Jessica Parker and Jessica Biel to name a few.