As CNBC's John Carney has shown, Facebook founder Mark Zuckerberg could avoid ever reporting any income simply by borrowing against his assets to meet his living expenses.

WSJ: Jenkins: The Inequality Obsession

Here as in the film, the emphasis is on characterization, not action, and while Enda Walsh, who wrote the book, has spelled out much of what was implied in John Carney's screenplay, he's done so in a way that is anything but heavy-handed.

WSJ: Once | Jesus Christ Superstar | The Little Musical That Should | Theater Review by Terry Teachout

Warrington captain Adrian Morley has also expressed an interest, while Ian Millward is back to join a list of regulars that already includes Justin Morgan, John Kear, Brian Carney and Iestyn Harris.

BBC: Behind the mic