The first porn film I ever saw was Sometime Sweet Susan, back in the 70's. In those days, you had to go to a theatre and buy a ticket. Having a co-conspirator gave me the guts to go in. (I will not tell you about my first visit to a gay porn theatre. After that experience, I'm surprised I didn't turn straight.)
The male star --and of course, he's the only one I remember-- was one Harry Reems. He died of cancer the other day, after a serendipitous porn career, fighting a federal indictment for conspiracy because of acting in the infamous Deep Throat, years of alcoholism, getting sober and married and having a career as a realtor in Utah.
Here's Harry as I first saw him, and still remember him.