New comic book memoir by actor Steve Martin and cartoonist Harry Bliss

“CBS Morning” co-host Gail King joins actor Steve Martin and cartoonist Harry Bliss for their new book, “Number One Is Walking: Myself in the Movies”. Discuss “life and other pastimes.” Martin shares behind-the-scenes stories from hit movies such as “Three Amigos,” and Paul talks about getting McCartney to sing one of his songs.