 That led to a suggestion by "SNL" executive producer Lorne Michaels to extend the skit into a one-hour mock documentary.This proposal led to the mockumentary "All You Need Is Cash" (1978), directed by "SNL" film director Gary Weis, with Idle credited as co-director.On 23 April 1977, Idle made another appearance on "Saturday Night Live", with Neil Innes as a musical guest.