The story is essentially the same as the popular Jane Cowl play, with Talmadge in the dual role of Kathleen and Moonyean. Kathleen, a young Irish woman, is in love with Kenneth Wayne but is prevented from marrying him by her guardian John Carteret. John is haunted by memories of his thwarted love for Kathleen's aunt, Moonyean.
Unfortunately the movie Smilin' Through is not yet available on HBO Max.
| Directing | Sidney Franklin | Director |
| Writing | Jane Cowl | Theatre Play |
| Writing | Jane Murfin | Theatre Play |
| Writing | James Ashmore Creelman | Adaptation |
| Writing | Sidney Franklin | Adaptation |
| Production | Norma Talmadge | Producer |
| Production | Joseph M. Schenck | Executive Producer |
| Camera | J. Roy Hunt | Director of Photography |
| Camera | Charles Rosher | Director of Photography |
| Costume & Make-Up | George Westmore | Makeup Artist |
