You have your two-headed pickled fetuses, your half-woman (pictured), a whole family of lobster-people, a monkey-girl, a handful of dog-faced boys, and some really tall and fat people. You have a freak show. Actually, what you’ve got is Sideshow, producer/director Lynn Dougherty’s feature-length documentary, narrated by Jason Alexander, which seeks to preserve the fading realm of the circus sideshow. Watching it, you’ll find that it’s not that freaks don’t exist, they’ve just disappeared from their original venue. Some now work the daytime-TV circuit, while others prefer to lead quiet, behind-the-scenes lives as, say, critics and writers. The point taken as one leaves the theater is that freaks are fun to look at, especially when they’re onscreen and you don’t have a chance in hell of seeing them in person, which would be sort of sad. Step right up at 5 p.m. at Bethesda Theater Cafe, 7719 Wisconsin Ave., Bethesda. $5. (301) 587-2853. (Anthony Keats)