Justin Timberlake Pictures on Runner, Runner Set

Justin Timberlake reported to the Puerto Rico set of Runner, Runner yesterday. He's the first actor to be spotted on the set of the thriller, which will star Ben Affleck and Anthony Mackie as well. The plot centers around the shady dealings of an online gambling company, with Justin playing a student who loses his savings after a bad bet.

JT brought his fiancée, Jessica Biel, along to the island. Jessica took advantage of the great weather to explore the surroundings. Jessica covered up her bikini with a rash guard to hit the beach solo on Friday. She's got down time at the moment but will soon switch gears to promote her next project. Jessica's remake of Total Recall, directed by Len Wiseman and also featuring Kate Beckinsale and Colin Farrell, will be out Aug. 3.