Director Ron Howard is currently busy shooting his F1 racing drama Rush, and heâs been keeping fans quite involved in the filming process via his Twitter account. While he hasnât shared any set photos featuring the actors yet, someone else recently managed to snap star Chris Hemsworth decked out in his racing gear. The film focuses on the 1970s rivalry between Austrian F1 driver Niki Lauda (Daniel Brühl) and British driver James Hunt (Hemsworth). Itâs a dramatic story filled with more than a few dangerous racing accidents, and producer Brian Oliver previously told Steve that cinematographer Anthony Dod Mantle (Slumdog Millionaire) was working on some experimental camera mounts to capture the treacherously fast races.The Hemsworth set photos arenât anything crazy, but we do get a good look at him in his racing getup. Iâve also included a few photos of Howardâs that give us a peek at the interesting camera mounts and such. All in all, I'm pretty interested to see how Rush turns out. Hit the jump to see the set photos.Hemsworth images are via CelebBuzz, while the other set photos come from Howardâs Twitter.Head over to CelebBuzz to check out the rest of the images.