The song featured on the soundtrack of the Nicholas Sparks film, The Best of Me
. Caillat said: "I've always been a fan of Nicholas Sparks, his writing and the way his writing gets turned into beautiful films. And for me as a songwriter, it's always so incredible to be able to write a song that is something that I wrote from my personal life, and it can fit so beautifully in a film during a scene and actually just capture the moment completely, and it really just adds emotion to the movie and to the song."
"When I got to write a song for Nicholas' last movie, which was Safe Haven
, Gavin DeGraw and I wrote a song called 'We Both Know
' for the film, and that opportunity was so amazing," she continued. "And now this time around with The Best of Me
, I was honored that they were looking for a song that was fitting the movie, and I already had written one about two years ago, and it's called 'In Love Again,' and this song completely fits the mood and the setting of this film."