"About Time" is a mix of "Groundhog Day" and a Nicholas Sparks adaptation that's not as inventively manic as the former and far from as insipid as the latter. Shudder at the thought of that second option. In Sparks' hands, the intertwined worlds of love and time travel could've ended up saccharine, trite and gimmicky. Here, in the hands of writer-director Richard Curtis ("Love Actually"), it's actually quite lovely.