Rollerball

Rollerball can refer to more than one thing, most commonly a type of writing instrument and, in popular culture, a science fiction film and its remake.

Rollerball pen: A rollerball pen is a writing instrument that uses a small rolling ball in the tip to transfer liquid ink to paper. The ink is typically water-based or gel-like, which allows smooth, fluid lines similar to fountain pens while preserving the convenience of a ballpoint design. The rolling ball controls ink flow and line width, producing consistent writing on many paper types. Rollerball inks can dry quickly but may be more prone to smudging or feathering on cheap or glossy papers and can leak if left uncapped or subjected to pressure changes. Refills are widely available in cartridge formats, and many brands offer variations in ink color and durability.

Rollerball (film): Rollerball is a 1975 dystopian science fiction film directed by Norman Jewison. Set in a future society dominated by corporations, the story follows a professional Rollerball player who becomes a symbol of resistance against the system. The film presents a critique of corporate power, mass entertainment, and the commodification of sport. Its style and themes have made it a noted reference in discussions of sports as political spectacle. A 2002 remake of Rollerball was released, updating the premise for a contemporary audience but receiving mixed reviews.

Overview and usage: The term rollerball thus primarily denotes the writing instrument, while it is also recognized as the title of the 1975 film and its 2002 remake. In everyday language, “rollerball” may appear in product names or discussions about pen ink technology, but the pen-related meaning remains the dominant usage.