One Day - poster and images

No UK trailer exists at the moment so here is the US one that i would guess gives the plot away a lot more than the UK trailer will.

Twenty years. Two people...

Directed by Lone Scherfig (director of An Education, Academy Award-nominated for Best Picture), the motion picture One Day is adapted for the screen by David Nicholls from his beloved bestselling novel One Day.

After one day together – July 15th, 1988, their university graduation – Emma Morley (Academy Award nominee Anne Hathaway) and Dexter Mayhew (Jim Sturgess of Across the Universe) begin a friendship that will last a lifetime. She is a working-class girl of principle and ambition who dreams of making the world a better place. He is a wealthy charmer who dreams that the world will be his playground.

For the next two decades, key moments of their relationship are experienced over several July 15ths in their lives. Together and apart, we see Dex and Em through their friendship and fights, hopes and missed opportunities, laughter and tears. Somewhere along their journey, these two people realize that what they are searching and hoping for has been there for them all along. As the true meaning of that one day back in 1988 is revealed, they come to terms with the nature of love and life itself.

In Cinemas August 26th 2011
A Universal Picture © 2011 Universal Studios. All Rights Reserved