Movies are endlessly surprising. Take How to Be a Latin Lover. In a sane world, I’d follow that with the Catskills-comedian punchline “Please” – although on the day I attended, others were clearly looking forward to it more than I was. The friendly ticket-counter employee told me how much she loved what I thought were pretty noxious previews for the comedy, and directed me to the auditorium with “Try not to laugh too hard!” (“No problem,” I silently replied.) The incessantly chatty patrons sitting behind me expressed excitement about the impending “pool scene,” which, again, looked astoundingly unamusing in the trailers. Then I saw the film. And damn it if this latest vehicle for Mexican comedian Eugenio Derbez wasn’t a sweet, moderately clever outing boasting a peppy spirit, a bunch of inspired performers, and a fistful of truly riotous moments. I swear: Sometimes, this job makes no sense at all.