2. Girl 6 (Spike Lee, 1996)

Here we go — an entire movie about phone sex. Girl 6 is not exactly the most progressive offering from Mr. Lee — the nuances of autonomous female sexuality seem to escape him in this particular joint. But it does feature several moments of authentic sexiness. So that's nice. Theresa Randle plays a struggling actress who takes on phone-sex work, becoming the mutable, desirable Girl 6 at a sex line. The line between fantasy and reality slowly blurs. At one point, a co-worker asks her if she's having orgasms with her clients. Like a lot of people in sex work, she denies it, wanting to keep boundaries clear, but when she first enters this world, she's visibly turned on by her own sexual potency, and it's way steamier than expected.

NEXT: "One of the first times phone sex was treated like legitimate sex on screen..."