About Time (Richard Curtis, 2013)
At the age of 21, Tim discovers he can travel in time and change what happens and has happened in his own life. His decision to make his world a better place by getting a girlfriend turns out not to be as easy as you might think. (imdb)
Rachel McAdams must be some kind of constant in the space-time continuum. She also played the Time Traveler’s Wife (2009) and in Midnight in Paris (2011) she was, in a certain way (the context is different), the time traveler’s fiancee.