I remember it well - it was the day that Bronco Billy caught a 73 bus to Kings Cross (the lengths I go to in order to pinpoint the year I shot some of these old negatives!) Bronco Billy was released in 1980 and I was fairly sure that was the Lord of the Rings I spotted sliding out of frame on the right hand side. Which seemed very early for the classic Peter Jackson trilogy. But there was a 1980 cartoon version. Gotcha!