Ryan Reynolds' secret agent gets killed so Gary Oldman decides to email his memories into Kevin Costner's brain. But then, like a cunning leopard, Costner escapes into London and starts punching van drivers.
Pretty sure this turned up on Mark Kermode's list of worst films released so far this year, or possibly some other professional film watcher. Yeah, it's total ballsack, but enjoyable enough, and we've seen much worse.
And although I frequently find myself agreeing with Kermode, occasionally he can fuck off and take his pompous fucking sandwiches with him.