You might think Josh Radnor’s commitment to the hit CBS sitcom “How I Met Your Mother” — in which he’s the “I,” always on the lookout for “Your Mother” — would make a side project as ambitious as “Happythankyoumoreplease” all but inconceivable. Yet according to Radnor, “Happy,” the indie romance he wrote and directed, which opens today after winning standing ovations at this year’s Sundance Film Festival, would never have been possible without his high-profile day job. Read More