In photos obtained by Express Online, the actor wore a dark pink shirt with sleeves rolled up to show off his muscular forearms.
He completed the simple post-apocalyptic look with black trousers and matching military-style boots.
One of the snaps saw the actor leaping into a sprint with a cameraman crouching behind him for one of the film’s action sequences.
In other shots, Aaron either jogged or walked casually in between takes with a slightly tired smile on his face.
These latest photos of the star come as The Fall Guy actor remains one of the bookies’ top choices to replace Daniel Craig as James Bond.
However, he faces stiff competition from one of his upcoming co-stars, Theo James.
The two Bond frontrunners are confirmed to star in the upcoming heist thriller Fuze, directed by Hell or High Water’s David Mackenzie.
According to a synopsis, the film “opens on the discovery of an unexploded World War II bomb in a London construction site sparking a mass evacuation, the perfect cover for a heist”.
Shooting is set to begin in July, while 28 Years Later is set for a June 2025 release date.