I've been revisiting a lot of "non-Loy" William Powell movies that I haven't seen in about six years and spotted this wedding gown in The Hoodlum Saint (1946). Esther Williams, who would have been 100 on August 8th, is a guest who is kissed by wedding-crasher Powell looking to find himself a job among the wealthy business men in attendance.
While the movie begins in 1919, with Powell coming home from fighting oversees, the bride's dress is definitely 1946...
This shot shows the voluminous skirt, with what looks like just a small bit of train. The veil is probably the same length or just a bit longer than the dress.
The veil appears to be a lace cap with the tulle attached. White roses tied with a wide ribbon bow make up the bouquet (white roses plays a part in the film).
The bodice is very snug with a high-to-low waist. There are long, snug fitting sleeves and lace applique on the bust extending above the Queen Anne neckline of the gown. A simple necklace of graduated pearls completes the bridal look.