Public Domain Movies released in 1921

Buster's handmade boat, The Damfino, is finished and is, of course, too large to get through the basement door. When he drives off with it in tow, the side of his house, then the whole thing, collapses. At the harbor he rides the boat out only to have it sink beneath him. The rest is a series of adventures he and his family have with the restored boat. This funny short has some good subtile gags plus the usual slapstick and gadgets.

The Sea Lion is a 1921 American silent adventure film directed by Rowland V. Lee, and starring Hobart Bosworth, Bessie Love, and Emory Johnson. It was produced and distributed by Associated Producers Incorporated. The team who worked on this film had previously made Lee's Blind Hearts (1921).

The young Gascon D'Artagnan (Douglas Fairbanks) arrives in Paris, his heart set on joining the king's Musketeers. He is taken under the wings of three of the most respected and feared Musketeers, Porthos (George Siegmann), Aramis (Eugene Pallette), and Athos (Léon Bary). Together they fight to save France and the honor of a lady from the machinations of the powerful Cardinal Richelieu (Nigel De Brulier).

From IMDb: Eccentric inventor Charlie Jackson tries to interest wealthy investors in his girlfriend's plan to help children from poor neighborhoods. Stars: Marguerite De La Motte, William Lowery, Gerald Pring, Morris Hughes, Barbara La Marr, Sydney dé Grey, and Douglas Fairbanks

Buster at his place of work, a bank. After being falsely accused of being a bank robber he escapes to the local 'haunted' which is really a cover for a gang of counterfeiters, also in the house are the cast of a lousy version of 'Faust' who are escaping a hostile audience.

Dumb luck sets some policemen on his trail -- after a series of innovative escapes, he gets mistaken for a murderer with a price on his head, which means the people that aren't chasing him are fleeing from him.

Spinster Lulu Bett lives with her sister, Diana, and is a servant in Diana's household. Diana's brother-in-law, Ninian, visits, and smitten with Lulu, arranges a dinner party in her honor. At the party Ninian jokingly proposes marriage to Lulu, and recites the wedding ceremony, which Diana's husband, a justice of the peace, realizes is binding. Lulu lives with Ninian until she discovers he is already married. She goes back to her sister's home where she is treated poorly.

The Sheik is a 1921 American silent romantic drama film produced by Famous Players–Lasky, directed by George Melford, starring Rudolph Valentino and Agnes Ayres, and featuring Adolphe Menjou.

The opening scene, a dream sequence prior to the vaudeville routines which follow, is what makes this film famous. In it Keaton plays everyone in a theatre simultaneously (through multiple exposures). He is the band leader, all its members, the dancers on the stage and everyone in the audience.

AKA Tangled Trails Corporal Jack Borden (Neal Hart), of the Northwest Mounted Police, trails the man who killed his partner to New York City. The killer is an unscrupulous promoter who is selling worthless stock in a gold mine. Borden, with the help of Blanche Hall (Gladys Hampton), locates the man in a Bowery dive, but he escapes and Borden tracks him back to Canada. Along the way, he discovers that Blanche and his sweetheart, Milly (Violet Palmer), are long-separated sisters and brings about a reconciliation.

Pages