The Time Traveler's Wife (2009)

A romantic drama about a Chicago librarian (Eric Bana) with a gene that causes him to involuntarily time travel, and the complications it creates for his marriage. Clare (Rachel McAdams) has been in love with Henry her entire life. She believes they are destined to be together, even though she never knows when they will be separated: Henry is a time traveler—cursed with a rare genetic anomaly that causes him to live his life on a shifting timeline, skipping back and forth through his lifespan with no control. Despite the fact that Henry's travels force them apart with no warning, Clare desperately tries to build a life with her one true love.