Bill Murray has finally agreed to reprise the roll of Doctor Peter Venkman and team up with Dan Aykroyd, Ernie Hudson and Harold Ramis for two new 'Ghostbusters' adventures. The two new movies will be shot concurrently, with one to be released for Christmas 2012, the other for Christmas 2013.

Making the third movie has been delayed because Murray objected to the original screenplay.  Aykroyd told Vanity Fair last fall he has taken over scripting .        Who you ganna call?  'Ghostbusters'!