Antoinette Sibley, who's in the movie, returned to dancing after having a child. I think her daughter would have been a toddler at the time the movie was made.
Melissa Hayden and Allegra Kent both returned to the company after pregnancies, but they were both principals with a) strong relationships with Balanchine who had proved their special value to the company and 2) had the desire and support to make a return happen. I don't think he and von Aroldingen had yet formed their later close relationship; she said she had to prove to him that her marriage and child hadn't made her what Balanchine described as "Mrs. So-and-So." Balanchine did have a point, in that husbands, particularly then, had expectations of a wife that could conflict with the dedication required of a ballerina.
Having said that, the main problem it seems to me is that, as California says, the movie seems to be endorsing the perception -- which, as Helene says, was real enough. The Turning Point presents the issue simplistically and melodramatically - have a child and abandon your career forever, or concentrate on your career and look forward to a barren and empty old age, albeit in a very nice flat:).
That's lovely, cobweb. And I would say the movie does convey that the ballet world is an exciting place to be and work, and its heroine doesn't end up hurling herself in front of a train or bleeding to death onstage.
What do others think?