Katy Perry's song The One That Got Away always reminds me of Titanic:
Old women remembering her dead love form her young days who is apparently a painter. Which is the exact premise of Titanic, both women married someone else after there love's death but still can't forget their love interest. In the end both go on edge of the boat/hill and remember their love.
So is Katy Perry song homage to Titanic or is it inspired from the film? Did they ever addressed the similarity?