The Tourist
(2010)

After the shootout between Interpol and Reginald Shaw, we discover that Frank Tupelo (Johnny Depp) is actually Alexander Pierce. Because of his $20 million plastic surgery, even agent Elisa Clifton-Ward (Angelina Jolie) didn't realize it until Frank opens the safe with the right combination.

In the end they flee, leaving a 744 million pounds cheque for Interpol so that chief inspector Jones (Timothy Dalton) declares the enquiry closed, despite officer John Acheson's (Paul Bettany) protest .

The mysterious man seen twice in the movie (Rufus Sewell) is a real English tourist who works for "a man who sends text messages" (allegedly Pierce).

Thanks K!