Fortunately, About Time's leads are

Fortunately, About Time's leads are solid across the board; only on the periphery are there cracks in the acting armor. Domhnall Gleeson is probably known as part of the Weasley family in Harry Potter to most people, but he is very charming and mostly likable here. His humor needs more work, and he oversells his awkwardness around the opposite sex. However, his dramatic arcs with Mary and especially his dad are solid from beginning to end; Gleeson's strength is his ability to show his feelings, and Tim is probably the most relatable person here. Rachel McAdams is now on her 2nd time travel romance story, and she's much better in this one than the first. She is easily the weakest of the three principals, but she makes Mary a down to earth girl whom every man wishes they could fall in love with. Her part isn't necessarily hard, but she doesn't drag the movie down either. Bill Nighy carries with him the same spark that he carried in Love Actually here. Nighy is equal parts charming, wise, and lovable; the best scenes in the film revolve around him. I found the rest of the cast OK and mostly trying too hard to be quirky, but some have their moments like Tom Hollander as a pissed off director and Joshua McGuire as a sad sack at work