Odeon Cinemas is a British chain of cinemas, also being the largest in Europe. It is owned by Odeon & UCI Cinemas Group whose ultimate parent is Terra Firma Capital Partners.

Odeon Cinemas was created in 1928 by Oscar Deutsch. Odeon publicists have claimed that the name of the cinemas was derived from his motto, "Oscar Deutsch Entertains Our Nation", but it had been used for cinemas in France and Italy in the 1920s, and the name is ultimately derived from Ancient Greek.

The name "Nickelodeon" was coined in 1905 and was widely used to describe small movie theatres in the United States during that era.

However the company is most associated with J. Arthur Rank, the owner for the longest period in its history.

Source: Wikipedia