I couldn't find an official trailer for this 2005 made-for-television BBC drama, so I've embedded someone's screencap of the opening couple minutes of the film. Bill Nighy is at the top of his game portraying a painfully shy civil servant who has a chance encounter with Kelly Macdonald's character. Although the storyline centers on world poverty and global aid, the power of the film comes from the sensitive portrayal of the relationship between these two actors.
"The film was noted at the 58th Primetime Emmy Awards, where it received seven nominations and won Outstanding Made for Television Movie, Outstanding Writing for a Limited Series, Movie, or Dramatic Special for [screenwriter] Curtis, and Outstanding Supporting Actress in a Miniseries or a Movie for Macdonald."Available on Netflix; I found the DVD in our local library. I can recommend it unreservedly.