Don't worry - I've clearly marked where the 'spoilers' are in my comment, and if you don't want to hear about the ending - it's well marked.
NON-SPOILER:
-Video can be found on YouTube-
First, understanding the 3 main characters:
...1. Gillian Anderson (Woman1) - it was interesting to see such a younger version of her, even though this was a grainy black and white film. Her character gets excited about everything, one could almost say she was playing the ditsy blond. Not very smart, but fun to be around, and willing to do anything for Man1. This role was a stark contrast to her X-files character Scully, who is often level headed, speaks her mind, and not too easy excitable.
...2. (Woman2) was a raging feminist! Anything Man 1 had to say, she could find a way to turn it into some sort of misogynistic abuse of women. Even when Man1 asked Woman1 to get him a cigarette, Woman2 was upset by the fact that Woman1 would do it. Although Woman1 didn't mind.
...3. (Man1) was the oddest of the bunch. He seemed both interested in the ladies, while at the same time, pretending as if he didn't care if they were around. I think honestly he did care, even if he pretended not to show it. Once he was alone, he turned on the radio only to hear the voice Woman1, he turned on the TV where he found the voice and image of Woman2. Thus, he decides to call Woman1 - only to receive her voicemail. Maybe referring to 'you don't know what you had until it's gone'?
****Possible MINOR Spoilers Below (Just my assumptions on the ending)******
I had to watch this several times, trying to understand what each character was about - when I realized, this ISN'T a story of EACH person. It's the story of JUST ONE PERSON! Hence the title, "Three at Once". I read somewhere in the bio that it was an analogy to Freud's id, ego, and superego - the theory that all 3 traits reside in each person.
I think this Freudian suggestion may be very plausible, or simply some type of comparison of the 3 different parts of a person's psyche. The clarity comes only in the last few lines of dialogue, where Woman1 asks if they can all still be friends, and the other 2 at first scoff at the idea. Then seem to consider the possibility they could/should try to be friends. I believe it's all summed up in the final line:
(Woman1): "We're not puppets, we're individual people. We're complex and unique. You're you and...
(all 3 together): ...we're us"
~ Suggesting they are Three at Once and no matter how different the 3 personalities seem, every person needs them all to make you a well rounded person, even if they often seem at odds... get it?
