Revolutionaries in the field of photography are celebrated in the Getty Museum's exhibition, "Photographers of Genius," now on display, in honor of its 20 years of collecting photographic images. Walker Evans, Dorothea Lange, Man Ray and Alfred Steiglitz are four of 38 artists represented for their pioneering efforts in their field, utilizing the photograph as document, as art and as tool for political and social change. Through July 25. 10 a.m.-9 p.m. (Fri. and Sat.), 10 a.m.-6 p.m. (Tues.-Thurs. and Sun.). Free. 1200 Getty Center Drive, Los Angeles. (310) 440-7300.
Kids, do the brunch thing, then send mom off for something she really needs: some time away from you. Opening today is Amy Simon's one-mom-show, "Cheerios in My Underwear (And Other True Tales of Motherhood)," based on her own experiences raising her children full-time. But take heed, this material is strictly for grown-ups. 4 p.m. (May 9, 16, 23 and 30, and June 6). $12-$15. The Lillian Theatre, 1078 N. Lillian Way, Hollywood. (310) 308-0947.
A resilient little boy is the titular character in Alejandro Agresti's Argentine film, "Valentin." With a largely absent father and entirely absent mother, Valentin is taken in by his grandmother, but remains lonely and isolated. His escape comes in varied attempts to play matchmaker between his lothario father and one of his girlfriends, whom he hopes will replace his mother. The film opens this week. $6.50-$9.50. Laemmle's Monica 4, 1332 Second St., Santa Monica. (310) 394-9741.
The stereograph. You might think of it as a more sophisticated version of that 3-D viewfinder toy you loved as a kid. Two photographic images are used to create a three-dimensional image -- in the case of the Skirball's latest exhibition, the chosen subject is turn-of-the-century Palestine. "Traveling the Holy Land Through the Stereoscope" is on view in the Ruby Gallery through Aug. 15, in conjunction with their "Jewish Life in Ancient Egypt: A Family Archive from the Nile Valley" exhibit. Noon-5 p.m. (Tues.-Fri.), 11 a.m.-5 p.m. (Sun.). Free. 2701 N. Sepulveda Blvd., Los Angeles. (310) 440-4500.
"Guardian of the Pearl's Shadow, Part 2" has a more poetic ring than titles of other art exhibitions tend to have, but that's the idea, according to its creator, Yehudit Sasportas. It hints at notions of treasures tucked away for protection, and the vanity of that effort, which only serves to protect the shadow of the real thing. But for those who didn't get most of that, the good news is that the installation can be understood on multiple levels, and that viewing it goes a long way in clarifying the enigmatic title. It's on display at the Roberts and Tilton Gallery through May 29. 11 a.m.-6 p.m. (Tues.-Sat.). 6150 Wilshire Blvd., Los Angeles. (323) 549-0223.
Women aiming to beat the clock naturally should consider hearing out age-defying guru Dr. Judith Reichman. In addition to her L.A.-based practice in gynecology, infertility and menopause, the doctor has worked as medical contributor on women's health for "The Today Show." Her latest book, titled, "Slow Your Clock Down: The Complete Guide to a Healthy, Younger You," becomes the subject of her appearance this evening, at the downtown Central Library. 7 p.m. Free. 630 W. Fifth St., Los Angeles. (213) 228-7025.
Jay Mohr and Julianne Nicholson star in a new romantic comedy that reads like the stereotypical male fantasy: a guy's fiancé feels inadequate about her sexual history and therefore suggests they sleep with other people until their wedding night, to get it all out of their system. In reality, however, (or in the reality of Wally Wolodarsky's new film, anyway) things inevitably go terribly awry. Do they make it to the chapel? You'll have to see "Seeing Other People" to find out. Screens at Laemmle Sunset 5 in West Hollywood, Laemmle Monica 4 in Santa Monica, Laemmle Playhouse 7 in Pasadena and Laemmle Fallbrook 7 in West Hills beginning May 7. www.laemmle.com