"There aren't a lot of scripts that were right for me, there was one I wanted to do, 'Mamma Mia,' but I was working, so I couldn't. This one just kind of worked its way into it," said Cher.
Cher shares a lot of her scenes with actor Stanley Tucci. They were the veteran cast members in a movie filled with newcomers like Christina Aguilera.
"We were there just to do a good job, have a good time, but also to be supportive of someone like Christina who had never done a film before," said Tucci.
In one scene in the movie, Cher puts makeup on Christina. Cher said she wrote that part of the script. It's a true story about her mom.
Both Tucci and Cher said they're similar to their on-screen characters in that they're both nurturers in real life.
"I have three children that I take care of since my wife passed away. That's most of how I spend my time," said Tucci.
"I'm also, like the character in the movie. I'm used to having so many people around, much younger," Cher said. "They look to you to give them the feeling of security, and I think that was the relationship I had with the girls in this film."
Cher will be one of among nearly 200 celebrities who have left their prints at Grauman's Chinese Theatre.