Which movie contains the longest kiss and how long does it take?

Andy Warhol's 1963 movie "Kiss" shows a series of 3 1/2 minutes kisses between different pairs.

www.imdb.com/title/tt0213035/

You're in the Army Now (1941) has reportedly the longest kiss in film history - three minutes and six seconds, between Jane Wyman and Regis Tommey.

https://www.filmsite.org/filmkisses39.html

Longest Kiss in Movie History -- Elena Undone (2010) -- Ousting You're in the Army Now (1941) by 18 seconds, Elena Undone is the longest kiss at 3:24. Considering that Jane Wyman and Regis Toomey's lips were glued together, it seems fitting that a real 3 minute plus kiss now hows the title.

http://listverse.com/2012/05/21/12-notable-screen-kisses/

A 1933 Bollywood film, "Karma", contains a four minute kiss.

http://www.rediff.com/movies/slide-show/slide-show-1-the-longest-kisses-in-bollywood-history/20101111.htm