It almost certainly means Senator Barack Obama is on the line, ready for another turn of a rolling conversation the two men have been having most every day for what has been a remarkable two years.
Four years ago, Mr. Murphy, a comic-book lover since growing up on Long Island in the 1970s, turned a forum on his personal Web site (donmurphy.net) into a rolling conversation about the movie, which was released on July 2.
"It's going to be a rolling decision, a rolling conversation that we need to have with Dan as to what he needs to prioritise in his career.
"It's a rolling conversation.
That turned the casting process into a rolling conversation, with more, and faster, input from the companies that do the hiring.
The page features pictures of the crew at work and at home, with short tributes and a rolling conversation in the comments section.
One senior White House official said Mr. Bush had been having a "rolling conversation" with his political strategists in recent weeks about how to proceed as Dr. Dean's candidacy collapsed and Mr. Kerry emerged as the front-runner.
We did a round of introductions and went over the rules, such as they are: Be there the full day, no coming and going; keep your gadgets at bay (unless to take pictures or otherwise enhance the day); be present and game; try when possible to nourish a single, rolling conversation among the group rather than one-on-one side chats.
Whether making up for lost time or feeling an itch to engage while he had a ready audience, Mr. Perry held a rolling conversation with reporters, interrupted again and again by people rushing over to thank him for joining the race.
In 2003, Scott Murray started a cricket match report on the Guardian website: "WHAT SORT OF LIFE IS THIS AND WHAT THE HELL AM I DOING BOARDING A TRAIN FOR MOORGATE AT 6.30 IN THE MORNING", and continued in that vein, prompting a rolling conversation among readers about the existential despair of the modern workplace.
