You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "who plays king arthur in king arthur legend of the sword?" whose answer is Charlie Hunnam.
Each document should contain about 30 words, and these documents should contain useful information.

Query: who plays king arthur in king arthur legend of the sword
Useful Output:

Doc 1: Charlie Hunnam discusses his role in 'King Arthur: Legend of the Sword' · Comments86.
Doc 2: Arthur's childhood is handled in a montage that shows Ritchie at his French-New-Wave-on-speed best, a series of smackdowns and humiliations that
Doc 3: Cast · Charlie Hunnam as King Arthur · Àstrid Bergès-Frisbey as The Mage · Djimon Hounsou as Sir Bedivere · Aidan Gillen as Goosefat Bill Wilson
Doc 4: Two decades later, Arthur (Charlie Hunnam) has grown into a skilled street fighter while Vortigern has become a more tyrannical ruler. When
Doc 5: How Guy Ritchie would refashion the story was equally inevitable: this Arthur, played by Charlie Hunnam, is a street-smart wide boy to be found