In California in the early 1980s, a cracked tooth sent Mike Williams to the dentist's office.
When Williams asked to see the tooth, the dentist said he had a mirror but that there was no camera or anything to show people the insides of their mouths. So, Williams invented one: the first intraoral camera.
His invention was a big success, and it led to other medical technology ventures that made him millions of dollars. Williams' career as an inventor and entrepreneur took off, but it wouldn't last.
Theweekends on All Things Considered series Movies I've Seen A Million Times features filmmakers, actors, writers and directors talking about the movies that they never get tired of watching.
The movie that rapper-actor Common, whose credits include Brown Sugar, American Gangster, Just Wright and LUV — currently playing in theaters — could watch a million times is John Landis' Coming to America.
President Obama, accompanied by Vice President Joe Biden, talks at the White House on Jan. 16 about proposals to reduce gun violence. Obama has called for a ban on military-style assault weapons and high-capacity ammunition magazines and is pushing other policies in the wake of the mass shooting last month at an elementary school in Newtown, Conn.