Alternate versions

The film was shot in Academy Ratio (1.33:1 or 4:3), but this was done around the time widescreen filmmaking was coming around. As such, many theatres cropped the film into a widescreen ratio to take advantage of this, with many DVDs being cropped as well. The 2013 Blu-ray Disc release is in the proper Academy Ratio.

When originally released theatrically in the UK, the BBFC made cuts to secure an 'U' rating. All cuts were waived in 1986 when the film was granted an 'PG' certificate for home video.