Best Friends

They realize they’re in love with their buddy, best and/or childhood friend, a near staple of the teen comedy, but used to great effect in adult comedies, too.

When Harry Met Sally
13 Going On 30 (Matty and Jenna -- seen in image above)
Where the Heart Is
Get Over It
Drive Me Crazy
Whatever it Takes
Some Kind of Wonderful
Nearing Grace
Trojan War
Just Friends
The Truth About Cats and Dogs
Pretty in Pink (the original ending has her ending up with Ducky!)
Clueless
Emma
Picture Perfect
Catch and Release
Norbit
Two Weeks Notice
The Sure Thing
Blue Lagoon
Secret Admirer
Sweet Home Alabama
Empire Records (Liv Tyler and Johnny Whitworth)
Loser