http://bitly.com - This time Curtis seems to be reaching for the philosophical depth and emotional clout of bittersweet magic-realist classics such as Groundhog Day or Eternal Sunshine of the Spotless Mind. He falls short of both but his ambition is still admirable. Not as charming as his best work but not as cloying as his worst About Time received a modestly warm reception at its public premiere in London on Thursday. Commercial prospects will largely depend on whether the Curtis brand still packs the same platinum-plated punch as it did in more innocent times.