The United Nations (abbreviated UN in English, and ONU in its other official languages), is an international organization whose stated aims are facilitating cooperation in international law, international security, economic development, social progress, human rights, and achievement of world peace. The UN was founded in 1945 after World War II to replace the League of Nations, to stop wars between countries, and to provide a platform for dialogue. It contains multiple subsidiary organizations to carry out its missions.

There are 193 member states, including every internationally recognised sovereign state in the world but Vatican City. From its offices around the world, the UN and its specialized agencies decide on substantive and administrative issues in regular meetings held throughout the year. The organization has six principal organs: the General Assembly (the main deliberative assembly); the Security Council (for deciding certain resolutions for peace and security); the Economic and Social Council (for assisting in promoting international economic and social cooperation and development); the Secretariat (for providing studies, information, and facilities needed by the UN); the International Court of Justice (the primary judicial organ); and the United Nations Trusteeship Council (which is currently inactive). Other prominent UN System agencies include the World Health Organization (WHO), the World Food Programme (WFP) and United Nations Children's Fund (UNICEF). The UN's most prominent position is Secretary-General which has been held by Ban Ki-moon of South Korea since 2007.

Emma Charlotte Duerre Watson (born 15 April 1990) is an English actress and model.

Watson rose to prominence playing Hermione Granger in the Harry Potter film series. Watson was cast as Hermione at the age of nine, having previously acted only in school plays. From 2001 to 2011, she starred in all eight Harry Potter films alongside Daniel Radcliffe and Rupert Grint. Watson's work on the Harry Potter series has earned her several awards and more than £10 million. She made her modelling debut for Burberry's Autumn/Winter campaign in 2009.

In 2007, Watson announced her involvement in two productions: the television adaptation of the novel Ballet Shoes and an animated film, The Tale of Despereaux. Ballet Shoes was broadcast on 26 December 2007 to an audience of 5.2 million, and The Tale of Despereaux, based on the novel by Kate DiCamillo, was released in 2008 and grossed over US $86 million in worldwide sales.

Emma Watson was born in Paris to Jacqueline Luesby and Chris Watson, both British lawyers. Watson has one French grandmother, and lived in Paris until the age of five. Following her parents' divorce, she moved with her mother and younger brother to Oxfordshire.

Leonardo Wilhelm DiCaprio (/dɨˈkæpri.oʊ/; born November 11, 1974) is an American actor and film producer. He has been nominated for the Golden Globe Award eight times as an actor, and won the Golden Globe Award for Best Actor for his performance in The Aviator (2004). He has also been nominated by the Academy Awards, Screen Actors Guild, Satellite Awards, and the British Academy of Film and Television Arts.

Born and raised in Los Angeles, California, DiCaprio started his career by appearing in television commercials prior to landing recurring roles in TV series such as the soap opera Santa Barbara and the sitcom Growing Pains in the early 1990s. He made his film debut in the comedic sci-fi horror film Critters 3 (1991) and received first notable critical praise for his performance in This Boy's Life (1993). DiCaprio obtained recognition for his subsequent work in supporting roles in What's Eating Gilbert Grape (1993) and Marvin's Room (1996), as well as leading roles in The Basketball Diaries (1995) and Romeo + Juliet (1996), before achieving international fame in James Cameron's Titanic (1997).