Wolverine's adamantium claws are iconic in both the X-Men movies and Marvel Comics, but we still can't explain how Logan actually controls them.

Hugh Jackman has shared a behind-the-scenes photo from one of his new plays, which will see the Deadpool and Wolverine star ...

and three retractable claws in each hand. Wolverine's alter ego is James Howlett and he is also known as Logan or Weapon X.