Not everybody loves Drew Barrymore, but I’m quite fond of her. Meanwhile, Hugh Grant has done so many rom-coms he could make asking Alexa for the weather forecast sound like he’s about to pop the question. So why do Barrymore and Grant spend most of “Music and Lyrics” (2007) generating such little chemistry? The story of a washed-up pop star and a frustrated writer haphazardly thrown together to hurriedly dash off a song for a current pop star comes off as, well, haphazard, hurriedly thrown together and dashed off (their age difference doesn’t help). Rom-com conventions rescue the ending – barely.