There are two kinds of biographical documentaries, the kind about a person we know and want to learn more about and the kind about a person we don’t know but should be aware of (according to the filmmakers, anyway). Few films are exclusively one or the other, because different viewers have different levels of familiarity with different subjects. Someone could presumably go into Marley completely ignorant of who Bob Marley was, while someone else might watch xi with full appreciation already of who Rodriguez is. I mention two music docs since the overlap likely occurs more so with this genre. And because this is a review of a doc about a notable songwriter, Doc Pomus. In certain circles, that’s a very famous name. But for a lot of us, the lyricist behind such tunes as “Viva Las Vegas,” “This Magic Moment,” “Save the Last Dance for Me,” “Suspicion” and many others is not only obscure, but we wouldn’t even have thought all were penned by the same person. We can now fix this oversight with A.K.A. Doc Pomus.