Jean Arthur is Seriously Miscast!
Don't get me wrong, I'm actually a big Arthur fan. I loved her 1930s comedies. But I can't for the life of me understand why she would be chosen for this role. She was eight years older than Van Heflin, and 13 years older than Alan Ladd, and she looks it. It strains credulity that Ladd would have fallen in love with her.
Heflin states in the movie that he has been married for 10 years, and Joey appears to be nine. So that would mean Arthur got married around 40 years old, which is not at all believable for the timeframe, when most women got married in their late teens. Arthur is easily old enough to be Joey's grandmother. Or I guess we are supposed to believe the character is in her 30s, but even with soft focus closeups, this is just not believable.
I find this distracting throughout the movie, especially since all the other characters are so well cast. I could see Susan Hayward in this role, she could be attractive enough to appeal to Ladd while still being not dolled up. Or maybe Maureen O'Hara.