Kyrila,
an interesting observation about hats, from a private letter written by stewardess Violet Jessop after she had seen ANTR (the film):
"I begged Miss Coffin (she means Yvonne Caffin, the costume designer) when she interviewed me ... not to put women on board in the very beflowered, beplumed hats of the period as American women (and they were mostly Americans) would never wear street hats on board, and look what met your eyes at the Captain's table! Everything except the kitchen table on their heads!"
I hope things were different in the Palm Court, as I'd hate to miss out on the hat.
Bob