No More Roberts
Julia Roberts was at first given a role as Vivian, however when the rights to the film were auctioned off to Disney, Roberts was out of the job because of an adjustment in official choices.
However, things were put back to how they were before with Julia Roberts in the leading role when director Garry Marshall was put in charge. He insisted he wanted to revert to the original cast and saw something in her that would make the movie a hit.