Revealing mistake: When Ralph blocks Hydra's rocket from its target, in the closeup as the rocket hits Ralph's abdomen the thin stunt wire is visible at the rocket tail. Then while Bill is fighting with Hydra, when Ralph is in mid-air heading to Bill the stunt apparatus is visible at Ralph's waist. (00:40:00)
The Greatest American Hero (1981)
1 mistake in Classical Gas
Starring: Michael Pare, Robert Culp, William Katt, Connie Sellecca, Don Cervantes
Ralph Hinkley: Bill, I've got an idea.
Bill Maxwell: Good, put it to me in a letter, I'll try to get back to you by the end of the month.