When Lulu's bankbook is shown at the beginning of the film it has a balance of $1,242.68 - which she withdraws from the bank to finance her vacation. That amount would equate to almost $21,500.00 in 2015.
While filming the horse-riding scene on the beach, Barbara Stanwyck's horse was frightened by the movie lights, reared, threw the star off, and then kicked her on the way down. Stanwyck suffered a dislodged tail-bone, an injury which, though it didn't hold up production, did cause the actress discomfort for the rest of her life.
The Production Code Administration (PCA) refused Columbia's request for approval in 1935 for re-release, calling it a "glorification of adultery," which was a code violation. The production code was strictly enforced starting in mid-1934.
The 'riding along the beach' sequence was once longer than the version that exists today on Youtube in which 'Lulu' can only be seen in close-up shots that wouldn't have required Barbara Stanwyck to go anywhere near a horse (the rest of it, the gallop through the surf, would have been done by stand-ins in any case). When this picture surfaced on British TV in the 1980s, there was extra footage of both main characters on horseback, talking as they rode before they had their passionate gallop. Maybe the sequence was cut to allow time for TV ads and the missing bit has effectively gone for good.
Despite being late in the cusp of silent/sound, the film is known to have been produced in both formats.