I've been lured by the five star ratings credited to this film. Marlene is divine as she moves between roles as top billing cabaret act Helen Jones and perfect wife and mother. When husband needs money for life saving medical treatment in Europe, Cary Grant's deep pockets provide the wherewithal. What Marlene does for the $1500 is not made absolutely clear, but whatever it is, she gets some super new frocks. Hubby comes back a week, fully recovered, finds Marlene on the gallivant with Grant. She's obliged to flee with sonny boy, but ends up in skid alley in the deep south, is eventually found by hubby who takes off with the little boy. Dietrich gets back on top of the bill again, this time in Paris, and Cary turns up to see the show and then to carry her back to NYC. From the film we learn what we all know, good women enjoy washing their kids at bedtime and singing a lullaby far more than clubbing at the Ritz.
It's a lovely film, for all its corniness: the quirky dialogue and dated uncomfortable slang make you wince, but it's early days cinema, and you enjoy its innocence - if only I could believe that the lovely girls fall for the slippers and cardigans rather than the tuxedo and wallet.