Ghost story

Dan Aykroyd reveals some details about "Ghostbusters 3." He said the story is "based on new research that's being done in particle physics by the young men and women at Columbia University," Aykroyd told Larry King. "Basically, there's research being done that … the dimension that we live in, our four planes of existence, length, height, width and time, become threatened by some of the research that's being done. Ghostbusters — new Ghostbusters — have to come and solve the problem." There still are no cast details (save for the confirmation that Bill Murray will not be involved) or a release date, so this is all as ephemeral as a ghost.

The final reel

"Walk the Line" co-stars Joaquin Phoenix and Reese Witherspoon reteam for Paul Thomas Anderson's "Inherent Vice." … Kate Hudson, Anna Kendrick and Mandy Patinkin have joined Zach Braff's crowdsourced film "Wish I Was Here." … Vince Vaughn stars in "The Delivery Man," a remake of the Canadian sperm-donor comedy "Starbuck." … "The Fifth Estate," the Wikileaks story starring Benedict Cumberbatch as Julian Assange, has been moved up from November to Oct. 11.