ON A TWO HOUR EDITION OF ABC'S "20/20," FRIDAY, SEPTEMBER 7:

"Lovestyles of the Rich and Famous" - An In-Depth Look at Marriage and Divorce, Hollywood Style, Including the Latest on the Church of Scientology's Alleged Involvement In Holding "Auditions" for Tom Cruise's Potential Love Interests -- Airs at 9:00 p.m., ET

"The Camera Never Lies" Airs at 10:00 p.m., ET

9:00-10:00 p.m., ET: "Lovestyles of the Rich and Famous"

Did the Church of Scientology "audition" actresses as candidates for Tom Cruise to date - and possibly marry? That's one of the claims in an explosive new Vanity Fair article making headlines around the world. The Church vehemently denies the article's claims as "hogwash." Elizabeth Vargas' report, which includes an interview with the article's writer, Maureen Orth, airs as part of a special "20/20" on "LoveStyles of the Rich and Famous." The hour takes viewers inside the volatile world of celebrity marriage and divorce - from Heidi Klum & Seal to Ashton Kutcher & Demi to Kim Kardashian & Kris Humphries -- and includes secrets revealed by high powered Hollywood divorce attorneys, celebrity insiders and the stars themselves about what makes a Hollywood marriage work, and why it can get so ugly and so expensive so fast. From the unlikeliest celebrity hook-ups and the relationships that have endured, to the quick fire "I do's" that became "I don't" in a matter of days, the hour is anchored by Elizabeth Vargas with reporting from Vargas and Deborah Roberts.

10:00-11:00 p.m., ET: "The Camera Never Lies"

Chris Cuomo anchors an hour of compelling stories of great caught-on-tape moments and the people behind them, including:

Seniors Strike Back: We expect to see our grandparents enjoying walks on the beach, games of bingo, and early-bird dinner specials. We don't expect to see video of them unloading handguns at would-be thieves, knocking out an aggressive hoodlum on a city bus or beating back stick-up men with grocery store mangoes. "20/20" talks to some seniors who didn't think twice about fighting back, questions whether it's bravery or foolishness, and talks to one old man who says he's developed the ultimate method of defense. Chris Cuomo reports.

Firsts: From deaf people getting cochlear implants for the first time to women reacting to their pregnancy tests, from high schoolers learning they've been accepted to college to kids learning that Darth Vader is Luke's father, Dan Harris explores the trend of documenting life-changing moments on video.

The Camera Sleuth: A camera lost in a creek in New York's Adirondacks for three years is being returned to its owner thanks to clever detective work by a Vermont man who studied pictures on its memory card. Jay Schadler reports on the series of clues that led to the Brooklyn, NY camera owner.

Kitty Cam: National Geographic and the University of Georgia have just released the results of a cat behavior study after strapping small "kitty cams" to the collars of 60 pet cats in Athens, GA. The results were often cute and charming. But they were also brutal. Deborah Roberts reports.

Heroes Versus Wimps: When a hideous car crash occurs on a highway, why do some people rush in to help while others stand by, even snapping ghoulish photos on their smartphones? What accounts for the difference between heroic and wimpy behavior? A team of noted psychologists hope to crack the code of bravery and teach us all how to unlock the superhero within. Jim Avila reports.

Public Displays of Affection: It is one thing to be told your partner is cheating, but how about being hit with photographic evidence of him or her cuddling and kissing with someone else? In the age of the ubiquitous camera and social networking, it's all too easy for cheaters to get busted. Nick Watt reports.

Preview links: http://abcnews.go.com/2020

David Sloan is executive producer of "20/20".