Ben Affleck and Justin Timberlake on Set in Puerto Rico

Justin Timberlake and Ben Affleck laughed on the set of Runner, Runner in Puerto Rico yesterday. Ben sported arm tattoos and a tank for the role while Justin went with white pants and a tee. Production started late last month, but it hasn't been just about work. Ben and Justin have both welcomed loved ones to the Caribbean island. Justin's fiancée, Jessica Biel, wore a bikini to visit a nearby beach in June and Ben's family flew in over the weekend. Ben greeted Jennifer Garner, Violet, Seraphina, and their son, Samuel, at the airport. It was a sweet reunion for the Garner-Afflecks, who will soon be on the go again when Jennifer starts promoting The Odd Life of Timothy Green in the coming weeks.