The day after another failed New Year's party, Tim's (Domnhall Gleeson) father (Bill Nighy) confesses to Tim that the men in the family are able to travel back in time and possibly tweak events that may have just happened. Tim uses his new found ability to get himself a girlfriend (Rachel McAdams). As years go by, Tim realizes that either he has less time for going back in time, or no need at all. Living the moment the best he can the first time is the recipe for happiness.
Watching this movie's characters may remind you of other British romantic comedies such as Notting Hill, Four Weddings and a Funeral, and Love Actually, and that's no coincidence because About Time is directed and written by Richard Curtis, director of the other three films I just mentioned. With Curtis you sort of expect quirky characters, lots of humor, plenty of love, the occasional tragedy, and a happy ending, and About Time has these ingredients and more in spades.
Rachel McAdams, one of my favorite leading ladies in romantic comedies or dramas (take as examples The Notebook, Midnight in Paris, and The Vow) is the co-protagonist in About Time, together with Domnhall Gleeson, who practically steals the movie with his sweet charm. McAdams and Gleeson had a sweet chemistry that propelled the movie forward. Bill Nighy has a flair for interpreting quirky characters to perfection, and he does so in this film superbly. The rest of the ensemble is just icing on the cake.