It's Gwyneth and Robert, Nic and Jon in a double serving of clandestinely-taken set pics from "Iron Man" and "National Treasure 2: Book of Secrets."

Gossip scooper Just Jared has both sets of…set photos. Take a gander if you're curious about either the comic superhero pic or the sequel to Nic Cage's treasure-hunting 2004 adventure flick.

"Iron Man," starring Robert Downey Jr. as the titular armor-suited hero, is directed by Jon "Money" Favreau and shooting now for a May 2008 release. Peep Jared's link for shots of Downey Jr. as billionaire industrialist Tony Stark/Iron Man and a dye-jobbed Gwyneth Paltrow, whose tresses have been colored to match her flame-haired character, Stark's secretary and love interest Pepper Potts.

The set shots show a suited Stark and Potts making out against the romantic backdrop of LA's Walt Disney Concert Hall, a background scene outdone only by…

The "National Treasure 2" set photos, snapped on location in front of the White House. On hand for filming were returning adventurers Nicolas Cage, Jon Voight, Justin Bartha and Diane Kruger, whose next quest sees them investigating the assassination of Abraham Lincoln. "National Treasure 2: Book of Secrets" is slated for a December 21, 2007 release.

Source: Just Jared (Iron Man), (NT2:BoS)