Backbone
| MPAA Rating: | NR |
| Genre: | Drama, Romance |
| Country: | United States |
| Directed By: | Edward Sloman |
| Written By: | Clarence Budington Kelland, Charles E. Whittaker |
| Cast: | Alfred Lunt, Sam J. Ryan, Jack W. Johnston, Adolph Milar, William Walcott, Marion Abbott, Edith Roberts, Frank Hagney, Emile La Croix, William B. Mack, George MacQuarrie, Hugh Huntley, Frank Evans, Charles Fang, Major Doyle |
| In Theaters: | Apr 30, 1923 |
| Runtime: | 1 hour 10 minutes |
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