Several readers note that Stephen Hawking has been in movies & therefore
presumably has a finite Bacon number, as well as almost certainly an Erdös
number. Also this: “Derb– Tim Hsu and David Grabiner have observed that
since Dan Kleitman actually appears (briefly) in and is a mathematical
consultant for the movie Good Will Hunting, Bacon has a combined Erdös/Bacon
number of 3, since Kleitman has Bacon number 2 (via Minnie Driver, who was
in Sleepers with Kevin Bacon) and Erdös number 1. Bruce Reznick is in a
similar position, with an Erdös number of 1 and a Bacon number (by virture
of being an extra in Pretty Maids All in a Row with Roddy McDowall) of 2. In
fact, Paul Erdös himself has an official Bacon number of 4, by virtue of the
N is a Number (a documentary about him), and lots of other mathematicians
have finite Bacon number through this film.”