By the time Luca Guadagnino’s erotically charged tennis film “Challengers” reaches its breathless, sweaty, pulse-pounding and deeply satisfying climax, you’ll be reaching for a cigarette, so to speak. Rarely is a film so sensorially captivating, every element of cinema, including script, cinematography, editing, score and performance blending together to create such a fizzy, frenzied brew, a chemical reaction of rage and lust sizzling with bubbling ferocity.