Online lists of annual top grossers need to be taken with a big grain of salt (sometimes an entire shaker.) They're lazy lists and mostly include (as this one does) all reissues in the totals. All that will give you is the highest grossing films FROM 1946 not the highest grossing films OF 1946...
Is this NOT the book where the author talks about Fred calling Ginger "the Wasp" behind her back because of her prickly personality while they were making Barkleys of Broadway? Is it a different book? I could swear it was the book with the top hat and the cane on front? Maybe I'm thinking of a...