The Danger Signal
Director: Erle C. Kenton
Production Company: Columbia Pictures
Release Date: 1 Jul 1925
Restoration being done now by The Library of Congress
Jane Novak (Mary Browning)
Dorothy Revier (Laura Whitman)
Robert Edeson (Cyrus Browning)
Gaston Glass (Ralph Browning)
Robert Gordon (Robert Browning)
Mayme Kelso (Mrs. Whitman)
Lee Shumway (John Moran)
Lincoln Stedman (Pudgy)
Summary from AFI.COM:
Mary Browning, the widow of the disinherited son of wealthy Cyrus Browning, is the mother of twin boys. Browning, who believes that he has only one grandchild, offers to adopt him and give him the best that money can buy. Mary sadly gives up Ralph, keeping Robert, the other son. Ralph grows up a wastrel, while Robert turns out to be a sterling young fellow, who finds work with his grandfather's railroad. The boys fall in love with the same girl, Laura Whitman; and Ralph, thinking to belittle Robert in her eyes, has him fired. Robert saves the mails from robbery and later saves his grandfather's private car from being wrecked. Cyrus Browning finally meets Mary, whom he has not seen for many years, and she introduces him to his second grandson. The old man realizes the faultiness of his attitude and promises to make amends for the hardships of Mary's life. Robert wins Laura, and Mary's gentle influence makes a man of Ralph.

Screenshot from the LoC They don't make movie stars do this anymore!

Cullen Landis rushes off, unarmed, to fight the villains

Eva Novak grabs a monkey wrench and jumps off the racing train to help Cullen.

The Dixie Flyer
Director: Charles J. Hunt
Writer: H. H. Van Loan
Distribution Company: Rayart Pictures
Production Company: Trem Carr Productions
Release Date: 1926
Additional restoration being done now by The Library of Congress

 Cast: Cullen Landis
Eva Novak
Pat Harmon
Summary from Motion Picture News Booking Guide , 12:26, Apr 1927.
"Vice-president of railroad seeks removal of president and stirs up insurrection in ranks with exception of young foreman. President's daughter seeks to find trouble and meets foreman. Between the two they defeat attempts of vice-president and find mutual love."