The sibling relationship with his elder brother, the Honourable Erik Nielsen, a former Deputy Prime Minister of Canada, served as the premise of an HBO mockumentary entitled The Canadian Conspiracy in which Leslie Nielsen appeared, along with other prominent Canadian-born media personalities.
Hans søskendeforhold til hans ældre bror Erik Nielsen, en tidligere vicepremierminister i Canada, var emnet for en HBO-mockumentary kaldet The Canadian Conspiracy, i hvilken Nielsen optrådte sammen med andre prominente canadisk-fødte mediepersonligheder.