Stop me if you’ve heard the one about Leonard Hofstadter falling in love with Siri; sometimes, reaching for low-hanging fruit proves too much of a temptation, though by now that joke has already passed its expiration date. In fact, you may be more familiar with Her, the latest film from Spike Jonze, through overuse of the aforementioned wisecrack than actual studio promotion. But punchlines about pop culture and technology don’t do full justice to Jonze’s picture, a wholly unique work that’s peppered with humor but is more meaningfully shaped through its examination of human relationships in a culture grown overly reliant on precious gadgetry. That’s the most surface level of…