Question: The song Pepperland Laid Waste was part of a soundtrack album to a film that premiered in what month and year?

full_context: Document 1: Yellow Submarine (sculpture): The Yellow Submarine in Liverpool is a large model representation of the submarine featured in the animated film "Yellow Submarine", inspired by the song of the same name on the Beatles album "Revolver". It was built by a group of about 80 apprentices from Cammell Laird's shipyard, designed in part by Mr L Pinch, a draughtsman at the yard, for exhibition at the International Garden Festival in Liverpool in 1984. The Submarine was in a garden themed around the Beatles, one of 60 such themed gardens, and was highly popular. The garden took the form of an apple-shaped labyrinth, containing symbolic references to the group, and included a bronze statue of John Lennon, which now stands at Liverpool John Lennon Airport.
Document 2: Yellow Submarine (album): Yellow Submarine is the tenth studio album by English rock band the Beatles, released on 13 January 1969 in the United States and on 17 January 1969 in the United Kingdom. It was issued as the soundtrack to the animated film of the same name, which premiered in London in July 1968. The album contains six songs by the Beatles, including four new songs and the previously released "Yellow Submarine" (1966) and "All You Need Is Love" (1967). The remainder of the album was a re-recording of the film's orchestral soundtrack by the band's producer, George Martin.
Document 3: Help! (album): Help! is the fifth studio album by English rock band the Beatles, the soundtrack from their film "Help!", and released on 6 August 1965. Produced by George Martin, it was the fifth UK album release by the band, and contains fourteen songs in its original British form. Seven of these, including the singles "Help!" and "Ticket to Ride", appeared in the film and took up the first side of the vinyl album. The second side contained seven other releases including the most-covered song ever written, "Yesterday".
Document 4: Yellow Submarine (song): "Yellow Submarine" is a 1966 song by the Beatles, written by Paul McCartney and John Lennon, with lead vocals by Ringo Starr. It was included on the "Revolver" (1966) album and issued as a single, coupled with "Eleanor Rigby". The single went to number one on every major British chart, remained at number one for four weeks, and charted for 13 weeks. It won an Ivor Novello Award "for the highest certified sales of any single issued in the UK in 1966". In the US, the song peaked at number two on the "Billboard" Hot 100 chart and became the most successful Beatles song to feature Starr as lead vocalist.
Document 5: Geoff Emerick: Geoffrey Emerick (born 1946) is an English recording studio audio engineer. He worked with The Beatles on their albums "Revolver", "Sgt. Pepper's Lonely Hearts Club Band", "The Beatles" and "Abbey Road".
Document 6: A Beginning: "A Beginning" is an instrumental piece composed by the Beatles' producer George Martin and intended as an introduction to "Don't Pass Me By", Ringo Starr's first solo composition from the Beatles' 1968 double album "The Beatles" (also known as the "White Album").
Document 7: Sea of Time: "Sea of Time" is an instrumental piece composed by George Martin and performed by his 41-piece orchestra for the Beatles' film "Yellow Submarine" and was included on the orchestral Side 2 of its soundtrack album. The piece is significant among the orchestral tracks, as it features Indian classical instrumentation. It opens with a tampura drone and a winding melody similar to that of George Harrison's "Within You Without You", from the Beatles' 1967 album "Sgt. Pepper's Lonely Hearts Club Band".
Document 8: Yellow Submarine (film): Yellow Submarine (also known as The Beatles: Yellow Submarine) is a 1968 British animated musical fantasy comedy film inspired by the music of the Beatles, directed by animation producer George Dunning, and produced by United Artists and King Features Syndicate. Initial press reports stated that the Beatles themselves would provide their own character voices; however, aside from composing and performing the songs, the real Beatles participated only in the closing scene of the film, while their cartoon counterparts were voiced by other actors.
Document 9: It's All Too Much: "It's All Too Much" is a song by the English rock group the Beatles from their 1969 album "Yellow Submarine". Written by George Harrison in 1967, it reflects the ideological themes of that year's Summer of Love. The Beatles recorded the track in May 1967, shortly after completing their album "Sgt. Pepper's Lonely Hearts Club Band". It was one of four new songs they then supplied for the 1968 animated film "Yellow Submarine", to meet their contractual obligations to United Artists.
Document 10: Return to Pepperland: Return to Pepperland is a cancelled Paul McCartney album recorded in 1984–1987. The album was built up of mostly home demos and was a reflection of work from McCartney's career as a member of the English rock band the Beatles. Although it was made around twenty years after the release of the Beatles' 1967 album "Sgt. Pepper's Lonely Hearts Club Band" (which inspired it), some tracks which made their way onto the bootleg were written whilst McCartney was in the Beatles, including the Lennon–McCartney-written "Love Me Do" and "P.S. I Love You". Other songs turned up on CD-single B-sides including the McCartney/Stewart song "Don't Break the Promise".
Document 11: Pepperland (song): "Pepperland" is an instrumental orchestral piece conducted and composed by The Beatles' producer George Martin for the "Yellow Submarine" film and was the introduction to the orchestral Side 2 of the film's soundtrack album by The Beatles, released in 1969. The song was recorded by a 41-piece orchestra at Abbey Road Studios on 22–23 October 1968. The piece, as with the others in the film, is tailored to the vibrant visuals of the film, so contain novelty sounds, effects, and musical experimentation that are better understood when paired with these visuals for some, however these pieces of music can also be admired for their beauty on their own.
Document 12: Pepperland Laid Waste: "Pepperland Laid Waste" is an instrumental orchestral piece conducted and composed by The Beatles' producer George Martin for the "Yellow Submarine" film and was the sixth track on the orchestral Side 2 of the film's soundtrack album by The Beatles, released in 1969.
Document 13: A Hard Day's Night (album): A Hard Day's Night is the third studio album by the English rock band the Beatles, released on 10 July 1964, with side one containing songs from the soundtrack to their film "A Hard Day's Night". The American version of the album was released two weeks earlier, on 26 June 1964 by United Artists Records, with a different track listing. In contrast to their first two albums, all 13 tracks on "A Hard Day's Night" were written by John Lennon and Paul McCartney showcasing the development of their songwriting talents. The album includes the title track, with its distinct opening chord, and the previously released "Can't Buy Me Love", both transatlantic number-one singles for the band.
Document 14: March of the Meanies: "March of the Meanies" is an instrumental orchestral piece conducted and composed by The Beatles' producer George Martin for the "Yellow Submarine" film and was the fifth track on the orchestral Side 2 of the film's soundtrack album by The Beatles, released in 1969. The song was recorded by a 41-piece orchestra at Abbey Road Studios on 22–23 October 1968. The melody is built on an insistent rhythm, driven initially by a marimba, over which strings and brass are given strident melodic passages.
Document 15: The Yellow Album: The Yellow Album is "The Simpsons" second album of originally recorded songs, released as a follow-up to the 1990 album "The Simpsons Sing the Blues". Though it was released in 1998, it had been recorded years earlier, after the success of the first album. The title is a play on the name of The Beatles' highly popular self-titled 1968 album, commonly known as ""The White Album"", with the skin color of the characters of "The Simpsons". In addition, the cover is a parody of The Beatles' 1967 album, "Sgt. Pepper's Lonely Hearts Club Band".
ground_truth: July 1968