Carl Sagan

Astrophysicist and Pulitzer prize winner, Carl Sagan shares how he realized that he wanted to study astronomy. Also discusses how he thinks Americans would handle the arrival of extra-terrestrials.

Columbo Star Peter Falk discusses the series' ties to the Mensa Society. Heavyweight champion and civil rights activist Muhammad Ali shows a clip from The Greatest.

Even stars get stiffed. Ask Bruce Dern. Comedian Robert Klein reports on making a movie with Burt Reynolds, and Dr. Carl Sagan bashes Star Wars for strangling science.