First, in "Riding on Air," Joe E. Brown stars as a bungling newspaperman who squares off against a rival to break a big story about a mysterious device and win the heart of a local girl. With Guy Kibbee, Florence Rice. AKA: "All Is Confusion." Then, in "When's Your Birthday?," Brown portrays a timid astrologer-turned-boxer whose victories are influenced by the signs of the Zodiac. Marian Marsh, Fred Keating, Edgar Kennedy co-star. 134 min. total. Standard; Soundtrack: English. Plays All Regions.