... at EMI Studio One, London (Feb 10, 1967) (11.1 MB, mpeg, colour).
The orchestral part was recorded with McCartney and Martin conducting a 40-piece orchestra. The session was filmed to be used in a TV special, however, the film was never released, although portions of it can be seen in this promo film. Reflecting The Beatles' taste for experimentation and avant garde, the orchestra players were decked out in formal dress for the film, but also asked to wear a "fancy dress" piece such as red noses or fake stick-on nipples.