You've Got Mail
A 1998 classic
A 1998 rom-com starring Tom Hanks and Meg Ryan, where the main characters' love story is sparked by a heated email exchange. Because, you know, nothing says 'romance' like arguing on the internet.
The movie follows the story of two strangers who meet online, only to realize they're meant to be. Or, you know, just two people with differing opinions on the best email client.
Other notable mentions: