VIDEO : Stephen Amell Gushes Over Friendship With 'Flash' Actor Grant Gustin

The Arrowverse's "Elseworlds" crossover is in the middle of filming, and it looks like its made one of the franchise's stars a little sentimental. Stephen Amell, who plays Arrow's Oliver Queen/Green Arrow, recently shared a paparazzi photo of himself and The Flash's Grant Gustin hugging while on the "Elseworlds" set. In the tweet, which you can ...