Vessel is a 2014 multi-national documentary film written and directed by Diana Whitten as her debut film, focusing on the work of Women on Waves, a Dutch pro-choice organization founded by the Dutch physician Rebecca Gomperts in 1999. The film's world premiere took place at SXSW in Texas on March 9, 2014. The film has been distributed by Filmbuff since 2015.

Women on Waves (WoW) is a Dutch nongovernmental organization (NGO) created in 1999 by Dutch physician Rebecca Gomperts, in order to bring reproductive health services, particularly non-surgical abortion services and education, to women in countries with restrictive abortion laws. Other services offered by WoW include contraception, individual reproductive counseling, workshops, and education about unwanted pregnancy. Workshops are conducted for lawyers, doctors, artists, writers, public health care activists, as well as for women and men to learn about contraceptive practices and non-surgical, self-induced abortion using RU-486. Services are provided on a commissioned ship that contains a specially constructed mobile clinic, the A-Portable. When WoW visits a country, women make appointments, and are taken on board the ship. The ship then sails out approximately 20 km, to international waters, where Dutch laws are in effect on board ships registered in the Netherlands. Once in international waters, the ship's medical personnel provide a range of reproductive health services that includes medical abortion.