Ben Affleck  wasn't feeling insecure when he met up with Justin Timberlake  at the world premiere of their new film, Runner Runner, at Planet Hollywood in Las Vegas yesterday. When Ben appeared on Late Night With Jimmy Fallon earlier this week, Ben revealed that he felt insecure  while working on the film with the singer-turned-actor. He joked on the show, "He dances like Michael Jackson , sings, write music. There's 400 million boy bands, and he's the one guy that became a gigantic star."
Ben wasn't the only person on the red carpet who could bring a smile to Justin's face — a Dolce & Gabbana-clad Jessica Biel  also turned up to support her Saint Laurent-wearing husband, and the couple even matched in black and white ensembles. The guys' costars Gemma Arterton and Sam Palladio were also on hand to introduce the film. Interestingly enough, Planet Hollywood has been a good place for former teen pop stars, as Justin's ex-girlfriend Britney Spears  announced this week that she has signed on for a two-year residency  at the Sin City casino.
Ben Affleck  joked with Justin Timberlake  on the red carpet.
Jessica Biel  popped by the premiere to support Justin Timberlake .
Gemma Arterton wore a green frock.
Justin Timberlake , Gemma Arterton, and Ben Affleck  introduced their film.
Ben Affleck  posed for photos with Sam Palladio.