“Meet the Mormons” begins from an oddly defensive posture, with its M.C. and narrator, Jenna Kim Jones, interviewing passers-by in Times Square about their perceptions of the Church of Jesus Christ of Latter-day Saints. Television and movie clips bolster the notion that the media fosters stereotypes of the religion. (The blockbuster musical around the corner goes curiously undiscussed.) “What are Mormons really like?” Ms. Jones asks. “You decide.”

To support its pitch, this infomercial-like documentary takes us into six homes. We meet an African-American bishop in Atlanta; a United States Navy football coach who avoids meetings on Sundays; a kickboxing husband and wife in Costa Rica; and a humanitarian in Katmandu. A once-homeless mother living in Salt Lake City offers the clearest explanation of how becoming a Mormon changed her life. But mostly the idea is just that these are diverse, interesting families — as if that should be so shocking.