<P> The buses used in road shots were Eastern National Bristol KSW5Gs numbered 2359 (VNO857), 2367 (VNO862), 2371 (VNO866) and 2376 (WNO476). </P> <P> The film was the second most popular movie at the British box office in 1971, and returned more at the UK box office than the latest James Bond film Diamonds Are Forever . It earned £ 1,500,000 in the UK and £ 1,000,000 overseas, making a profit to Hammer of £ 532,000 . Its box office gross was nearly 28 times the amount of its budget . </P> <P> Reviewing On the Buses in The Spectator, Christopher Hudson called it "a dullish adaption of the ITV series ." </P>

Where was the on the buses film filmed