Ray Brooks rides a 200cc Ariel Arrow with aftermarket "ape hanger" handlebars.
Film debut of Jane Birkin.
Respectively actress and score composer of this film, Jane Birkin and John Barry married the same year of its release.
Richard Lester:
one of the reaction shots when Nancy, Colin and Tom roll the bed through the streets. He's the balding guy standing next to a lady with big hair.