South Pacific.
M and I watched it together. I don't know if it's the age difference or a more general cultural difference in our backgrounds, but M isn't at all familiar with these golden age musicals that are so deeply embedded in my sensibility. (I was going to write "soul" but decided that was a little over the top. But only a little.) I have to admit I found that fact a little scandalous; it totally pushed my these-kids-coming-up-today-don't-know-anything-about-gay-culture!" button.
South Pacific was the first big musical production I performed in, at about age 15 I think. It figures heavily in my high school diary, which is why it's been on my mind. It was a production of the Putnam County Playhouse, the summer community theater in the town my family moved to when I was in eighth grade. I was in the chorus, so I was basically a sailor. I danced and sang my heart out and catcalled at the nurses. I was in gay boy heaven.