The North German Constitution was the constitution of the North German Confederation, which existed as a country from 1 July 1867 to 31 December 1870.
 The Constitution of the German Empire (1871) was closely based upon it.
Porgy and Bess is a 1959 American musical film directed by Otto Preminger.
 It is based on the 1935 opera "Porgy and Bess" by George Gershwin, DuBose Heyward, and Ira Gershwin, which is in turn based on Heyward's 1925 novel "Porgy", as well as Heyward's subsequent 1927 non-musical stage adaptation, co-written with his wife Dorothy.
 The screenplay for the film, which turned the operatic recitatives into spoken dialogue, was very closely based on the opera and was written by N. Richard Nash.
Béatrice et Bénédict ("Beatrice and Benedick") is an opéra comique in two acts by Hector Berlioz.
 Berlioz wrote the French libretto himself, based closely on Shakespeare's "Much Ado About Nothing".
Topaz is a 1969 American espionage thriller film directed by Alfred Hitchcock.
 Based on the 1967 Cold War novel "Topaz" by Leon Uris, the film is about a French intelligence agent who becomes entangled in the Cold War politics of the events leading up to the 1962 Cuban Missile Crisis, and later the breakup of an international Soviet spy ring in France.
 The story is closely based on the 1962 Sapphire Affair, which involved the head of French Intelligence SDECE in the United States, and spy Philippe Thyraud de Vosjoli—a friend of Leon Uris—who played an important role in "helping the U.S. discover the presence of Russian offensive missiles in Cuba".
 The film stars
Street Fighter is an animated television series produced by InVision Entertainment based on the "Street Fighter" video game franchise by Capcom.
 The series aired as part of the USA Network's Cartoon Express and Action Extreme Team lineups.
 It lasted two 13-episode seasons which aired from 1995 to 1997, for a total of 26 episodes.
 The show is closely based on the "Street Fighter II" series, but also borrows plot elements and characters from the live-action "Street Fighter" film and the first two "Street Fighter Alpha" games.
The Note of Hand, or Trip to Newmarket is a 1774 comedy play by the British writer Richard Cumberland.
 A farce it was the final play performed by David Garrick at the Drury Lane Theatre before his retirement.
 The play mocked some of the leading Whig politicians of the era such as Charles Fox and the Duke of Devonshire.
 This may have been the cause of Cumberland's dispute with Richard Brinsley Sheridan who was a Whig.
 Sheridan went on to create a character closely based on Cumberland in the 1779 play "The Critic".
The Romford Drum & Trumpet Corps is a youth band in a military band style, based in the London Borough of Havering.
 As one of the oldest independent youth marching bands in the country, it has a proud history, with performances throughout the UK, Europe and the USA.
 Its uniforms, instrumentation and style is closely based upon that of the Armed Forces British Military Bands.
 The band has performed at prestigious venues such as the Royal Albert Hall, Royal Festival Hall, Wembley Stadium, St Paul's Cathedral, Horseguards Parade and The London Palladium.
 It has also had the honour of performing in the presence of every member of the British Royal Family.
Much Ado About Nothing is a comedy by William Shakespeare thought to have been written in 1598 and 1599, as Shakespeare was approaching the middle of his career.
 The play was included in the "First Folio", published in 1623.
Clifford's Really Big Movie is an American animated musical epic adventure comedy-drama family film, loosely based on the book series "Clifford the Big Red Dog" by Norman Bridwell, and more closely based on the classic PBS Kids TV series adapted from it.
 This film was directed by Robert Ramirez, produced by Scholastic Entertainment and Big Red Dog Productions, and originally released to theaters by Warner Bros. on February 20, 2004.
The Datsun DS series was introduced in 1950 as the replacement for the Datsun DA.
 It was based on pre-war Datsun designs, themselves closely based on the Austin Seven.
 A more luxurious range with the same underpinnings, called the DB series, was sold in parallel.

Question: Béatrice et Bénédict was closely based on a comedy which was included in what?
Answer: the "First Folio"