"Parachutists dressed in black and using a private jet painted black have been in action at Cairngorm Gliding Club's site at Feshie Bridge.
The club declined to comment, but sources have told BBC News Scotland online that the filming is for Batman.
A former US military C130 Hercules transport aircraft linked to The Dark Knight Rises has also been making flights from Inverness Airport.
Feshie Bridge was reported as the location for filming earlier this month by Gavin Musgrove, editor of the Strathspey and Badenoch Herald.
It was not known if this week's activity at the gliding club was for scenes in the film, or preparation work ahead of proper filming."
Also, The Dark Knight Rises is seeking extras in the Pittsburgh area for an August 6 shoot. The extras will be used in a football game scene, involving the Gotham City high school team. Here's a description of the scene below.
"The scene we're in will be a football game, but not just any football game. We'll be cheering on the Gotham Rogues as they take on their rival team the Rapid City Monuments."
It isn't known how this scene will play out in the movie quite yet. for information on how to become an extra in The Dark Knight Rises.
The Dark Knight Rises was released July 20th, 2012 and stars Tom Hardy, Christian Bale, Anne Hathaway, Liam Neeson, Joseph Gordon-Levitt, Gary Oldman, Marion Cotillard, Morgan Freeman. The film is directed by Christopher Nolan.