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When President Obama and Gov. Mitt Romney meet for their third presidential debate on Monday, there will be some rules for the candidates — and the audience.

In the first debate, Jim Lehrer of PBS demanded "Absolute silence!" Although Lehrer caught some flack for letting the candidates freewheel in that debate, he meant business when it came to keeping the audience quiet.

"If you hear something that's really terrific, sit on it!" he told the audience. "If you hear something you don't like, sit on it!"

But that's not the only debate rule — not by far.

If the thought of eating horse meat makes you queasy, what about strong, sturdy oxen? A small Vermont college that emphasizes sustainable living will soon slaughter two beloved campus residents: Bill and Lou, a pair of oxen. Green Mountain College plans to serve the meat from the oxen in its dining hall, but the plan has drawn international outcry and a massive Facebook petition to save the oxen.

Filmmaker Ross McElwee is a one-man crew: soundman, cameraman, narrator. He reached a wide audience with his sweet documentary Sherman's March, which chronicled his journey through the South searching for love. The film won the Grand Jury Prize at the Sundance Film Festival in 1987. He's made five documentary features since then.

McElwee's latest film is Photographic Memory — and it presents a different side of the director.

Early in Photographic Memory, we see McElwee in a small town in Brittany, France, in a state of digital disorientation.

In 1969, four moppy-haired musicians named John, Paul, George and Ringo walked single file on a London crosswalk and made one of the most iconic album covers of all time. Today, a steady stream of Beatles fans and London tourists are still eager to walk in the footsteps of the Fab Four on that famous stretch of asphalt.

The countercultural revolution of the 1960s may have been all about sex drugs and rock 'n' roll, but for one young Texas singer it was all about the blues. No one sang the blues quite like Janis Joplin.

Joplin was part of a legendary line-up of musicians at Woodstock in 1969: Jimi Hendrix, The Grateful Dead, Joan Baez. She wasn't on the music scene long, though. Joplin died in 1970 of a drug overdose. She was only 27 years old, but in that short time her bluesy rasp helped define the music of a generation.