The Beatles' animated film "Yellow Submarine", loosely based on the imaginary world evoked by McCartney's 1966 composition, premiered in July 1968. Though critics admired the film for its visual style, humour and music, the soundtrack album issued six months later received a less enthusiastic response. By late 1968, relations within the band were deteriorating. The tension grew during the recording of their eponymous double album, also known as the "White Album". Matters worsened the following year during the "Let It Be" sessions, when a camera crew filmed McCartney lecturing the group: "We've been very negative since Mr. Epstein passed away ... we were always fighting [his] discipline a bit, but it's silly to fight that discipline if it's our own". In March 1969, McCartney married his first wife, Linda Eastman, and in August, the couple had their first child, Mary, named after his late mother. "Abbey Road" was the band's last recorded album, and Martin suggested "a continuously moving piece of music", urging the group to think symphonically. McCartney agreed, but Lennon did not. They eventually compromised, agreeing to McCartney's suggestion: an LP featuring individual songs on side one, and a long medley on side two. In October 1969, a rumour surfaced that McCartney had died in a car crash in 1966 and was replaced by a lookalike, but this was quickly refuted when a November "Life" magazine cover featured him and his family, accompanied by the caption "Paul is still with us". McCartney was in the midst of business disagreements with his bandmates when he announced his departure from the group on 10 April 1970. He filed a suit for the band's formal dissolution on 31 December 1970, and in March 1971 the court appointed a receiver to oversee Apple's finances. An English court legally dissolved the Beatles' partnership on 9 January 1975, though sporadic lawsuits against their record company EMI, Klein, and each other persisted until 1989. As the Beatles were breaking up in 1969–70, McCartney fell into a depression. His wife helped him pull out of that condition by praising his work as a songwriter and convincing him to continue writing and recording. In her honour, he wrote "Maybe I'm Amazed", explaining that with the Beatles breaking up, "that was my feeling: Maybe I'm amazed at what's going on ... Maybe I'm a man and maybe you're the only woman who could ever help me; Baby won't you help me understand ... Maybe I'm amazed at the way you pulled me out of time, hung me on the line, Maybe I'm amazed at the way I really need you."