All Hail The King is a short movie -- a "one shot," as Marvel calls them -- about what happened to Iron Man 3 character the Mandarin (Ben Kingsley) after he went to prison, written and directed by Iron Man 3 co-writer Drew Pearce. It's light, it's funny, there are some good lines and a neat twist. For the most part, I liked it.
One thing left a bad taste in my mouth.
If you haven't watched the Marvel one-shot/short movie All Hail The King, released a supplemental feature with Thor: The Dark World on Blu-ray/DVD, and you haven't watched Iron Man 3, and you want to see either of them unspoiled, skip the rest of this post. That's your spoiler warning.