Denzel Washington experienced an awkward encounter with King Charles III during the London premiere of "Gladiator II."

His seemingly unbothered attitude with regard to the British monarch didn't impact their later meeting. After his arrival, inside the theater, King Charles met the cast of Gladiator II, including Washington. "I didn’t know if I was supposed to grab your hand or not," the actor told the King as they met.

British royal family members are no strangers to solo outings—like when Prince William walked alone in a garden or when he traveled by himself to South Africa. The same goes for King Charles, who recently stepped out for a special solo appearance.