Disney's 2023 film The Little Mermaid has a theatrical runtime of 135 minutes.
That length makes the live-action adaptation substantially longer than Disney's 1989 animated film, which runs for roughly 83 minutes. The additional time allows the remake to expand character relationships, add new musical material, and develop the human-world storyline around Ariel and Prince Eric.
The 2023 version retains the animated film's central plot: Ariel, the youngest daughter of King Triton, longs to explore the surface and makes a dangerous bargain with Ursula. It also includes new songs written by Alan Menken and Lin-Manuel Miranda.
Runtime figures can vary when viewers compare theatrical listings, previews, and home-video editions. The commonly cited theatrical running time for the 2023 feature is 135 minutes, or two hours and 15 minutes.