If you were disappointed by the lack of subtlety in “Batman,” prepare yourself for Marion Davies' performance in this rather amusingly formulaic Civil War story. "Gail" is brought on board by Mr. Pinkerton himself to work as a spy for the Union, infiltrating Confederate territory. She darkens her skin, dons a laundry maid’s outfit, and adopts an accent intended to help her blend in as a servant girl. Fortunately for her, those she's observing aren't particularly bright, and she quickly gains favor with their adversaries, though also developing feelings for "Capt. Jack" (Gary Cooper) along the way. Upon returning for another attempt at intelligence gathering, but this time appearing more like someone who belongs in a Parisian ballroom, she discovers that her targets are not as unintelligent as she initially believed. Will she manage to get away before it's too late? Is a relationship with her beloved possible? Unless you’re unfamiliar with the outcome of this war, there isn’t much suspense to be found; however, there are some silly incidents, a few musical interludes, and just enough romance to allow Cooper an opportunity to demonstrate that he’s not as stiff as the scenery they're firing from. Davies gives it her all, particularly at first, but like many of the other performers in this film, she seems to be struggling against a wave of cheapness and some outdated racist depictions. These elements don’t age well, and viewing older films through contemporary eyes can sometimes be frustrating, so it's advisable to keep that in mind if you decide to spend ninety minutes with this unremarkable production.

Source on TMDB