Film Year Notes
Siren of the Sea (or The Mermaid) 1911 Silent film starring Annette Kellerman as the first mermaid in a film.
Neptune's Daughter 1914 Kellerman
A Daughter of the Gods 1916 Kellerman
Queen of the Sea 1918 Kellerman
Venus of the South Seas 1924 Kellerman
Miranda 1948 Starring Glynis Johns
Mr. Peabody and the Mermaid 1948 Starring Ann Blyth
Million Dollar Mermaid 1952 Based on the life of Annette Kellerman.
Mad About Men 1954 Sequel to Miranda
Pekka ja Pätkä sammakkomiehinä (Pekka and Pätkä as Frogmen) 1954 In this Finnish Pekka Puupää comedy film, the heroes rescue a foundered mermaid and carry her to Pekka's apartment. They set her on the bathtub. Pekka's wife Justiina initially sees only her fish-tail and is initially surprised of "a big fish the menfolks have caught" and gets a knife to prepare her as a dinner, but she faints as she sees her upper body.
The Mermaids of Tiburon 1962 Starring Diane Webber, George Rowe, and Timothy Carey
Beach Blanket Bingo 1965 Starring Frankie Avalon and Annette Funicello, and includes a sub-plot of the character Bonehead (Jody McCrea) falling for a mermaid portrayed by Lost in Space's Marta Kristen.
Head 1968 Starring The Monkees, briefly featured two mermaids in the opening "Porpoise Song" sequence, surrounded by psychedelic effects.
Local Hero 1984 Marine researcher Marina (Jenny Seagrove) is suspected by her love interest of being a mermaid.
Splash 1984 Starring Daryl Hannah and Tom Hanks, Hannah played a mermaid who fell in love with a man. She could walk on dry land in human form, but her legs changed into a fish tail whenever she got wet. Much of the movie revolves around her humorous attempts to conceal her true identity from her lover. A made-for-television sequel, Splash, Too[3] followed in 1988, starring Amy Yasbeck and Todd Waring.
Talk Dirty To Me Part III 1984 The third and fourth films in the adult film series Talk Dirty To Me feature mermaids who come ashore to find men. Just like in Splash, the mermaids can walk on dry land, and their legs become fish tails in water. The mermaid in 1984's Talk Dirty To Me Part III was played by then-16-year-old Traci Lords. When Lords' age became public knowledge in 1986, all of her films, including TDTM Part III, were pulled from the American market to avoid prosecution for distribution of child pornography. Lords' scenes were deleted from the film and were replaced with footage featuring Lisa DeLeeuw in the mermaid role. The edited version is called The New Talk Dirty To Me Part III and is the only version of the movie currently available. In the fourth film,Taija Rae played a mermaid from the same tribe as those in TDTM Part III, though her costume design was very different from those of the previous film. In TDTM Part III, the mermaid costumes were skintight, waist-high body stockings ending in fish tails. Rae's mermaid costume in TDTM Part IV was a bulky, chest-high construct that appeared to be fashioned from leaves, plastic daisies, and foam rubber scales.
The Little Mermaid 1989 Produced by Walt Disney Studios, portrays a variant of the story by Hans Christian Andersen about the mermaid that wished for legs. This film was followed by a prequel TV series, a direct-to-video sequel The Little Mermaid 2: Return to the Sea featuring the title character's daughter and a DTV prequel movie in 2008.
Hook 1991 Produced by Amblin Entertainment, three mermaids appear when Peter Pan Robin Williams is dropped into the ocean in Neverland.
The Secret of Roan Inish 1994 Incorporates mysticism into the selkies and their fae children.
Mermaid Got Married 1994 Hong Kong romantic-comedy (based on Splash) tells the story of a school teacher who falls in love with a mermaid who'd rescued him as a young boy. The film stars Asian cinema idolsEkin Cheng, Christy Chung, and Takeshi Kaneshiro.
Magic Island 1995 Lily, a young mermaid, befriends a group of buccaneers and joins them on their quest for Blackbeard's treasure.
Sabrina Down Under 1999 Sabrina Melissa Joan Hart travels to Australia's Great Barrier Reef with her best friend Gwen, a fellow witch from England, for a week-long vacation where they try to help protect a hidden mermaid colony whose habitat is threatened by ocean pollution, and by a local marine biologist, Dr. Julian Martin, determined to find the colony as his claim to fame. While Sabrina finds romance with Barnaby, a "merman" from the mermaid colony, Salem the cat finds a possible romance with another witch-turned-into-a-cat, named Hilary, but finds Sabrina's problems interfering with his plans.
She Creature 2001 Circa 1900, a carnival barker named Angus discovers a mermaid held captive in a tank by a disturbed old man. Angus steals the mermaid and loads her on a ship headed for America. When the mermaid is discovered, Angus's lover Lily begins to suspect that the mermaid is more dangerous than she first seemed.
Mermaids 2003 Erika Heynatz, Nikita Ager, and Sarah Laine are a trio of mermaids who solve their father's murder.
Mermaid in the Manhole ? A Tokyo-based shocked film centered around a decaying mermaid found living in the Tokyo sewer system. This is a very gruesome film in that it focuses on the mermaid's decay and subsequent death from exposure to toxic environment of the sewer
The Lion, the Witch and the Wardrobe 2005 Mermaids appear briefly at the end of the story.
Harry Potter and the Goblet of Fire 2005 Merpeople appear briefly during the second task.
Fairytopia ? In this Barbie doll direct-to-video movie series, a sub-series called "Mermaidia" features a fairy that becomes a mermaid.
Aquamarine 2006 The title character is a mermaid (Sara Paxton) who is washed ashore after a violent storm. She decides to search for true love on land, and makes two good friends (Joanna "Jojo" Levesqueand Emma Roberts) along the way.
Legend of Sudsakorn 2006 The title character is a boy (Charlie Trairat) who is the son of a mermaid who is sent on a magical quest to find his father, a prince.
Peter Pan 2003 Mermaids appear in a small segment: the narrator says they "are not like the mermaids in stories" though Wendy is thrilled by them. These mermaids have webbed fingers and markings on their faces. Peter asks them if Captain Hook has kidnapped John and Michael which the mermaids confirm. One of them also tries to drown Wendy.
Sirène song 2005 Short feature by Fanny Jean-Noel. A mermaid is seeking for a job.
Half Fish[4] ? Features two con artists trying to sell what they claim to be mermaid fetuses, until an actual mermaid shows up.
Empires of the Deep 2013? This upcoming film is about a human who falls in love with a mermaid in a fantasy world.
Pirates of the Caribbean: On Stranger Tides 2011 During his search for the Fountain of Youth, Jack Sparrow encounters several mermaids.

Source: Wikipedia