The Shanghai sequences were lensed by Peter Pau, while Christopher Doyle lensed the Beijing sequences.
In an interview with the Malaysian newspaper The Star, director Peter Chan said that "Perhaps Love" is a love story, not a musical. It's not even being promoted as a musical. It's not a musical in the conventional sense. His characters don't break out into song. Initially, it was a challenge for him to balance the over-the-top element in musicals and the subtleties of a movie. In the end, the method he used to overcome that was to make a movie-within-a-movie. The interview appeared in the 25 November 2005 edition of The Star, as Peter Chan was in Kuala Lumpur to promote his film.
The film was submitted by Hong Kong as its official entry for Best Foreign Language Film at the 2006 Academy Awards