6 - The first couple of minutes (i.e. most of the film) are bizarre, but quite charming in their own way. The short close-up on the pig at the end is creepy as hell, almost like the thing is having a stroke. It's all completely harmless if you have a tolerance for nightmarish pig masks. I guess you also could extract some commentary on gender roles out of this, but I really doubt that was the intention behind it.
The pig keeps dancing till it's no longer a pig but something else. At first nicely dressed in tuxedo, the pig is a symbol of wealth &privilege. The floozy strips away his status, his identity; debases him, forces him to wear drag; objectifies him the way the pig had objectified her. It's all a silly little routine performed in wide shot, but it gets at something about class & gender identity that's almost satirical.
There are a few different versions of this film. The basic one is the pig makes advances on the girl, she pulls off his jacket, and mostly they dance. The one I like is the longer version, with a closeup of pig wagging his tongue, wiggling his nose, and flopping his ears. Great pig. 3.5 stars.