There are lots of fun videos of Teri on Letterman, I think they were smitten with each other and would have fun bantering...this just popped up. a prefamous Teri Garr and an old friend of hers in the 60's practicing film making....
A Film by John Harris - © John Harris Films ALL RIGHTS RESERVED -Lovely Teri Garr in our wild time on Hollywood Blvd, "Where's the Bus?", a film I made with Ms Garr before her star launched. Back in the wonderful 1960s, Teri and I would take off on weekends to make movies. Filmed in wide-screen 16mm Anamorphic (CinemaScope) and black and white back in the day. Thank you Teri Garr and assistant Don Peak for this spontaneous trip back in time.
(It's a short 5 minute film student like production with a very young Teri, worth a look if you're a fan)