The Interviews:

 

Some of the biggest names in the business will take part in the film, adding their insights, their stories and their affection for these two titans of comedy. 

 

They include:

The families of Don Rickles and Bob Newhart.
Robert DeNiro   Billy Crystal   Chris Rock
Clint Eastwood  Alan Arkin   John Stamos
Tracy Morgan   Tina Fey   Amy Poehler
Carol Burnett   Dick VanDyke   Carl Reiner
Norman Lear   Will Farrell   Jim Parsons
Peter Scolari   Steve Lawrence  Jay Leno

And of course the film will be narrated by Bob himself.