Review here (x)
You know, the one thing other than 'Keanu Reeves isn't that bad an actor' that was going through my head while I was watching this film was 'this just straight up wouldn't work in Britain'.
The entire concept of the film is dependent on the two main characters being able to find letters that they leave for each other.
The letterbox for a British house is in the front door, not on a stick outside of the house.
Alex would find that first letter from Kate on the doormat and that would be the end of proceedings, because he'd have no way to reply unless the Royal Mail was in on it.
While I think we can all agree that the addition of time travelling posties would only be an improvement to any film, it's beyond any normal level of suspension of disbelief that everyone in the sorting office would see a letter from the future and not return it to sender for being a bullshit merchant.
Look, we're British. We don't do that lighthearted quirky shit unless kids are involved.
And I think it needs to be made clear that Alex would have to put his replies in the postal system. The idea that you could leave a letter for someone else near your house and expect it to be delivered is some weird foreign nonsense, unless you have some blackmail on your postman.
Even if the Royal Mail did deliver time travel letters (which they wouldn't, mostly on principal and because of cuts), these cutesie conversations between the protagonists would take much, much longer.
In film, it's instant messaging with real paper, in the British version, they're glorified pen pals. Which wouldn't last for long because they'd both be spending a fortune on stamps.
Which would be an interesting way to raise revenue, if nothing else.