David Letterman on the business of being funny

More than a thousand motorcycles took over Vatican City on Sunday to receive a blessing from Pope Francis. CBS News' Allen Pizzey reports.

The owner of the New England Patriots says Russian President Vladimir Putin stole one of his Super Bowl rings during a visit to St. Petersburg in 2005. CBS News' Chip Reid reports.

The 11-year-old boy who was targeted by racist tweets after singing the National Anthem at a San Antonio Spurs game, was invited back to sing at Game 4 of the NBA finals. Jeff Glor reports.

Michael Hogan, entertainment editor for the Huffington Post, talks to the "CBS This Morning" co-hosts about recent comments about the future of the movie business by legendary filmmakers George Lucas and Steven Spielberg.

Jeff Glor reports on how Tito Santana went from being a professional wrestler to a middle school teacher in suburban New Jersey, and how he remains a hero to kids.

Actor Ethan Hawke talks to Charlie Rose and Gayle King about his two new summer movies, "The Purge," and "Before Midnight."

Memoirist Jeannette Walls, author of the best-selling "The Glass Castle" and the newly released "Silver Stars," talks about surviving a childhood of poverty and adversity and how that shaped her attitude -- and her sisters' views -- on having kids.

Jeannette Walls, who has detailed her rough childhood in a 2005 memoir, and spoke to "CBS This Morning" about how she broke down the toughness she built growing up homeless, with mentally ill parents, and how her husband helped her embrace her past as a source of strength.

Memoirist Jeannette Walls, author of the best-selling "The Glass Castle" and the newly released "Silver Stars," offers her thoughts on how to deal with secrets by trusting other people.

Jason Silva, host of National Geographic's program "Brain Games," speaks to the "CBS This Morning" co-hosts about using experiments to challenge what we think we know about the brain.

While Jon Stewart takes time to direct his new film, "The Daily Show" has been taken over by longtime correspondent John Oliver. Charlie Rose reports.

This year is Superman's 75th anniversary. To celebrate, husband-wife team director Zack Snyder and producer Deborah Snyder created the new movie "Man of Steel." They talk about why their movie tells a different story of this "strange visitor from another planet."