Just do it once, and see how easy it is. I have no choice but to go alone these days. And I love it! So, OP, if you really want to see the Absolutely Fabulous film, use that to give you the courage to go alone. As other posters have said, I am never the only person on my own, and often get into conversation with other people. But if you don't want to, you don't have to. I would hate to miss films and plays I really want to see (especially the live Theatre Relays at my local cinema). It might have looked odd 50 years ago, but these days it doesn't make a scrap of difference, alone or in a group. Enjoy your film!