Jude Law wore a scent that smelled like "blood, fecal matter, and sweat" while performing his role of Henry VIII. "I thought it would have a great impact if I smelt awful", he said at a Cannes Film Festival press conference.
The song "Pastime with Good Company" which the court sings was indeed written by Henry VIII. It's thought to have been written for his first wife, Catherine of Aragon.
Katherine Parr spelled her name with a K, not a C as it is usually spelled now. Her signature reads, "Katereyn the Quene, KP."
To walk with a wobble, as Henry VIII suffered from venous leg ulcers that made his lower limbs swell, little nails and pebbles were placed in the shoes Jude Law wore.