In these films, "female friendship supersedes heterosexual romance, " says Leger Grindon, a professor of film and media culture at Middlebury College and the author of a 2011 book about the genre.

WSJ: Zoe Lister-Jones in 'Lola Versus' and the Evolution of the 'Best Friend'

That combustible mix of charm and intellect was on vibrant display last week as the two men grinned their way from photo op to photo op, cementing what they clearly hope will become a fast friendship of mutual interest and political romance.

CNN: Love at First Wonk

When peace came, Philip remained in the navy, but rekindled a friendship with Elizabeth that quickly blossomed into a public romance.

CNN: Prince Philip: The man behind the queen

Fans of the BBC One comedy Not Going Out may finally see the friendship between landlady, Lucy, and her flatmate develop into romance.

BBC: Lee Mack reveals Not Going Out has two different endings

Sure, we learn a few more details Vega left out (his friendship with a small child, the kind-of-sort-of romance with an Asari) but overall, it does little to expand upon Vega as a character.

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