Its a Boy (1933)

Its a Boy stars Horton as Dudley Leake who is betrothed to Mary Bogle the very pretty Wendy Barrie Shortly before the wedding Dudley blurts a confession to his friend and best man Jim Skippett 20 years ago Dudley had a brief affair with a certain Miss Piper but hes never heard from her since then Next day who should suddenly appear A youth about 19 or 20 years old claiming to be named Joe Piper Is he Hortons son or is Skippett playing a practical joke