Has Grandma Mazur Been Cast?

According to this article in the El Paso Times, the  iconic 78-year-old actress, Debbie Reynolds, has been cast as the role of  "a grandmother" in "One for the Money." I don't know about you, but I can't think of another grandmother in the book other than Grandma Mazur. I don't think that Joe Morrelli's grandmother,
Grandma Bella, is introduced until the second book, but I could be wrong. Below is an excerpt from that article.

'Reynolds credits those hard times and her family's hard-work ethic for her success and a career that is still active 62 years after she started. She had a recurring role on TV's "Will & Grace" and recently landed the role of a grandmother in Katherine Heigl's next movie, "One for the Money."'

I'm an old movie buff, and I am a definite Debbie Reynolds fan, but I am having a hard time picturing her as the bad ass, take no shit character, Grandma Mazur. I don't see her posted in the cast on IMDB yet, so it is not official news, but this may be the real deal. She definitely would be one that could stick around for the duration if they plan on making more of the books into movies. One thing she has going for her, at 78 years old she still has great legs!!