'A Hard Day's Night' is a 1964 British musical comedy film directed by Richard Lester and starring the Beatles, John Lennon, Paul McCartney, George Harrison, and Ringo Starr, during the height of Beatlemania. It was written by Alun Owen and originally released by United Artists. The film portrays several days in the lives of the group and was the first film made by the Beatles.

The film was a financial and critical success. Time magazine rated it as one of the all-time great 100 films. British critic Leslie Halliwell described it as a "comic fantasia with music; an enormous commercial success with the director trying every cinematic gag in the book" and awarded it a full four stars. The film is credited as being one of the most influential of all musical films, inspiring numerous spy films, the Monkees' television show and pop music videos. The British Film Institute ranked it the 88th greatest British film of the 20th century.

'Help' was produced in 1965, 'Yellow Submarine' was in 1968 and 'Let It Be' in 1970.

More Info: en.wikipedia.org