somehow I just never thought of Meryl Streep to be in Mama Mia. I never saw it but I just can't picture her doing ABBA.

FACT FIVE: Take a Chance on Me(ryl) The movie version of "Mamma Mia" stars Meryl Streep, Pierce Brosnan, Amanda Seyfried and Colin Firth. This is Meryl Streep's first full-on movie musical, though she previously sang on screen in Postcards From the Edge and A Prairie Home Companion. She was also up for the title role in Evita before Madonna was ultimately cast. To see her and her co-stars having the time of their lives, watch the exclusive theatrical trailer below.

Yahoo! Movies Presents Just the Facts on MAMMA MIA!