Question about Audrey Hepburn in My Fair Lady.
Disney waited on Julie Andrews to make Mary Poppins due to her pregnancy, correct? Is there any chance they would've waited again if she had done My Fair Lady, or was the movie needed to be made right then? Also, just curious, was it publicly known that Audrey didn't do her own singing back when the movie first premiered? I thought I remember hearing about how Marni Nixon was sworn to secrecy at the time, but maybe I'm making things up. This topic really fascinates me, for some reason.