When Paprika interviews Konakawa in his filmmaker guise, his mannerisms and appearance resemble that of Akira Kurosawa.
The tall and short bartenders on Paprika's website are voiced by director Satoshi Kon, and the original author of the Paprika novel, Yasutaka Tsutsui, respectively.
The film takes place in 2012.
Paprika is the last feature-length film from Satoshi Kon, who died in 2010 from pancreatic cancer.