In 1924, Dunbar went to Hollywood, where she starred in several motion pictures, including her role as the heroine in The Amateur Gentleman (1926) opposite Richard Barthelmess, which attracted considerable attention for her. She was also the fourth actress who played Jane, starring in the 1927 version of the Tarzan story, Tarzan and the Golden Lion, opposite James Pierce, who played the title role. Also in the cast was Boris Karloff, who played a native named Owaza.
Dunbar left the movies upon marrying her second husband, wealthy Minneapolis society man Thomas Bucklin Wells, II, who apparently acted in one movie himself, Ain't Love Funny? released in 1927 by Film Booking Offices of America (FBO).
She is said to have had seven husbands, including theatrical producer Maurice (divorced); Thomas Wells (married October 1926-his death); South American millionaire Jaime De Garson (divorced 1931); boxer/actor Max Baer (married July 8, 1931-divorced 1933); portrait painter Tino Costa (married 1936 -annulled 1937); and Russell Lawson.
She and Lawson had two sons, Richard and Russell.
When Dunbar was preparing to divorce Tommy Wells, she received a cable from him to come to Paris, where he was dying. She rushed to his bedside in the French capital and forgave him. He died in her arms, having succumbed to drug addiction. She received a $2,500 monthly income from his estate. She divorced De Garson, whom she married in London, to marry Baer.
She later styled herself as Dorothy Dunbar Wells. In 1936, she completed a book of poetry, but had not found enough nerve to send it to a publisher. She had long decided movies were behind her.
Dunbar asked that her marriage to French husband Costa be annulled because he was "temperamental and cold." In December 1937, she sued family members of her former husband, Wells, seeking $270,000 in trusts from his estate, because she said they had misrepresented certain papers they gave her to sign after his death. They told her, she said, the documents were to make certain the trusts were held for her, but she learned later the papers were actually waivers of her interest in the trusts.
After marrying Lawson, her seventh husband, Dunbar went by the name Dorothy Wells Lawson. She played bridge and golf, and won some trophies.
She died at age ninety in Seattle, Washington. Her memorial service was private by family.
- The Flaming Crisis (1924) (Mesco Productions) (Western) ... Tex Miller
- The Masquerade Bandit (1926) (FBO) (Western) ... Molly Marble
- The Amateur Gentleman (1926) (First National Pictures) (Drama/Romance) ... Lady Cleone Meredith
- Breed of the Sea (1926) (FBO) (Drama) ... Ruth Featherstone
- Red Hot Hoofs (1926) (FBO) (Western) ... Frances Morris
- Tarzan and the Golden Lion (1927) (FBO) (Action/Adventure) ... Lady Greystoke/Jane
- Lightning Lariats (1927) (FBO) (Western) ... Janet Holbrooke
- When a Dog Loves (1927) (FBO) (Drama) ... Letty Carroll
- What Price Love? (1927) (Anchor Film Distributors) (Drama) ... Alice George