Before I delve too much into this, I would like point something out. From my perspective, many queer people attempt to model themselves off of heterosexual culture. I see that often in relationships where one is masculine and the other is feminine. I honestly don't think we (GLBT people) are in the same boat as our heterosexual brothers and sisters. I don't live in societal boxes where I must be masculine/feminine and my partner must assume a role in opposition; however, I do see a masculine and feminine role in many GLBT relationships. We use those boxes to make sense of our existence because we are unable to critically assess our own individual roles and relationships.
I also do not agree with Butler's assessment. I don't think many people in the GLBT community are capable of playing with their sexuality to the extent she infers.
Armand and Albert's relationship definitely plays on the masculine/feminine gender boxing. Armand run's the club, has a child, teaches Albert how to be masculine and Albert does the shopping, dotes on Val, instructs the housekeeper on his duties and performs in drag.
The subversive aspect would be that Nathan Lane is actually a gay man and playing to the stereotypes that keep us boxed in. The heterosexuality aspects that are positive in this movie would be the family family values. Val refers to Albert as his mother and while they may not be a traditional family, they are a family nonetheless. This is the positive aspect of the movie, showing that GLBT families may be a little different in their structure, but their love is the same as heterosexual families.