Jennifer Connelly in The Rocketeer (1991)

Straight from the pages of a pulp comic from a past era, the Rocketeer recreates 1930’s Hollywood, complete with gangsters, Nazi spies, and the growth of the Age of Aviation. Young pilot Cliff Secord stumbles on a top secret rocket-pack and with the help of his mechanic/mentor, Peevy, he attempts to save his girl and stop the Nazis as The Rocketeer.