Johnny Dark is a 1954 American Technicolor comedy drama action film directed by George Sherman and starring Tony Curtis, Piper Laurie and Don Taylor.

Chief engineer Scotty overhears the guys complaining about the company, and spots a sports-car design Johnny and Duke have done.

When a major stockholder, Winston, protests the company's unwillingness to create new products for more profits, Scotty blurts out that Fielding Motors is developing a new sports car.

Duke invites her to go dancing, but is jealous when he spots her kissing Johnny, who has discovered Liz's true identity.

The car has a breakdown and Johnny must push it into Las Vegas, but when a radio broadcast implies that Fielding doesn't care, Scotty and a team of mechanics rush to Vegas to help Johnny get back into the race and win, which Liz and Duke help him celebrate.