Ben (Will Smith) stays at the Travel Inn in Los Angeles, California. This hotel was used before in Memento (2000).
Banana peel makes good fertilizer because it's rich in potassium. The box jellyfish can be deadly because its venom causes a cellular deterioration that makes the cells leak potassium, which can lead to cardiac arrest.
The film enabled Will Smith to tackle a subject which has always fascinated him from a different perspective: how do men overcome their traumas? How do they continue to live when everything is going wrong?
Will Smith feels that the movie is a modern love story unlike any other, and praised Director Gabriele Muccino for being a master of human relationships.