As you may have heard, there was a sudden change in the London company of The Producers, which is about to open. Richard Dreyfuss was going make his musical comedy debut in the lead role of Max Bialystock. Just the other day, citing medical problems, Dreyfuss pulled out and he's been replaced, only days before opening, by Nathan Lane…who at least knows the part. So a show that's about a show where the leading man is injured at the last minute and replaced has just replaced its leading man at the last minute because he's injured.
A lot of people immediately began presuming that the medical problems are a cover story; that something more serious prompted the switch. This article in a British newspaper says that Dreyfuss was just not ready.
So now the speculation can shift over to wondering how much it cost to get his replacement. I'm guessing that after twelve weeks at Drury Lane, they'll be replacing the "Drury" part of the signs with "Nathan."