Jubilee Trail represented one of the last attempts of Herbert J. Yates to get the American movie public to accept his wife Vera Hruba Ralston as a star. Again she didn't score with the public and pretty soon Vera and Republic Pictures were history.
Actually Republic Pictures really ended the day that John Wayne got shed of his long term contract with Republic. Yates made more money loaning him out to other studios than he did with the films that actually starred the Duke. After all, Duke's loanout services were pure profit, no overhead expenses involved in producing high budget epics that befit his growing star status.
John Wayne couldn't have saved Jubilee Trail because the central characters here are two women, Vera and Joan Leslie. Vera's running from a mysterious past in New York and she hooks up with Joan and her new husband John Russell. Russell is traveling west with a pack train of supplies for he and his brother Ray Middleton. Russell also has a past himself that involves some kanoodling with the owner of a local ranchero and a small bundle of joy he only finds out about just as he's starting west.
Middleton's real upset about the marriage as they've ruined plans for a merger between the two families. He takes an unreasoning dislike to Joan Leslie and is determined to gain control of the child she's carrying now after Russell is killed.
It really is more soap opera than horse opera. There's an Indian attack sequence, but I'm sure it's in there so western fans can have a little action. There's also a nice gun battle between Forrest Tucker and two bad guys in Middleton's employ looking to steal Leslie's child after it's born. Middleton is the kind of villain you are more likely to see on daytime soaps.
Tucker has the hero role, but he really does little between the action sequences but look solemn and declare his love for Leslie. Pat O'Brien has a supporting part as a cashiered army surgeon who drinks to forget his troubled past. And presiding over it all once they reach California is Vera at Jim Davis's saloon.
Vera's got the Marlene Dietrich part here, but Jubilee Trail would have been a whole lot better if Yates had gotten Marlene Dietrich for the part.