Adams is Anna Brady, an American romantic. Expecting a proposal from her boyfriend, it's not to be. So on a whim she decides to surprise him on his business trip to Ireland - and propose to him herself. Thereby cashing in on the cute Irish custom that a woman can propose to a man in leap year.
But a diverted flight and a downpour later, Adams finds herself on the wrong side of Ireland and seeking a ride. Irish barman Declan (Matthew Goode) agrees to see her safely to Dublin for a ready sum. Thus starts a roadtrip involving broken cars, missed trains, mudbaths, fisticuffs...and second glances.
Adams isn't as good as Sandra Bullock at the pratfalls, but she's gosh-darn watchable nevertheless. But Goode's Declan is a bit of a boor and their 48 hours thrown together fails to create a convincing chemistry.
But there are laughs - Adams' accidental trashing of a hotel room and her gate-crashing of a wedding are two. But Tucker's not careful enough to avoid the in-your-face cliches - so there's little freshness on offer.
Even the bickering feels forced. And the awkward sharing of a guestroom was done better in Bullock's The Proposal - as well as in the Scottish roadtrip comedy Soft Top, Hard Shoulder (which, it must be said, beats Leap Year hands down for fun).
But it's a breezy feelgood film that follows the formula. Adams impresses - and curveballs her career once more after the wildly differing roles of princess, nun and cook in Enchanted, Doubt and Julie & Julia respectively. It's more like her Wooster-esque turn in Miss Pettigrew Lives for a Day.
Tucker's luck seems to have deserted him though. His visual brilliance is certainly on show, but his nuanced approach is lacking. You wouldn't ask Fred Astaire to just...walk - and you don't hire Tucker to follow a formula.
But if you're indulgent, can go with the flow, and enjoy it as a piece of colourful whimsy, you'll probably be in clover.