When someone offers Charlie Day a perfect setup for a joke, he takes it, no matter how dark it is. Actor Charlie Day illustrated a basic tenet for most comedians while promoting his newest film, “The Super Mario Galaxy Movie” : When someone offers the perfect setup for a joke, you take it. And ― spoiler alert — this one was dark. Day provides the voice of Italian plumber Luigi in the film series and was asked about his favorite Luigi during an interview posted Wednesday by the “Tintoria”