1. Can't be a comedy. Must be drama, tragedy, science fiction, or epic. Romantic comedies must NOT be considered! For instance, avoid all Jennifer Lopez movies when soloing. Wedding Planner--no way! My Best Friend's Wedding would be OK, because Julia acts liken an angry spiteful woman and doesn't get the man she wants. At least I think that's how it ends.
2. Must not be horror. Light suspsense is OK, but not great.
3. Preferred time for soloing is afternoon. That way you're not a loser for not having anyone to hang out with at night.
4. Sneaking in munchables/comfort food is great fun. I easily justify potato chips since they don't sell those at movie concession stands. Pizza is also great, but requires planning and preparation. If planning and prep time is scarce, pizza flavoured Combos are an acceptable substitute.
5. Certain movies are really great for soloing, though it is not always easy to know that beforehand. The Matrix was a great solo movie. Any of the Lord of the Rings films are good for soloing as well, especially since I want to see them more times in the theatre than my friends do. The Hours would be another great solo movie. And any movie that you don't want your friends to know that you saw should be soloed. For instance, Save the Last Dance. (I dunno, I just think dancing movies are great fun. Flashdance, Dirty Dancing, Centerstage.)
5 1/2 Experience movies, like the Terminator movies, should be experienced in groups.
6. Advantages to soloing: Never having to repeat a line from the movie to a viewing partner. Never having to explain a plot twist or element to a fellow viewer. In most cases, not having to climb over someone to go to the potty.
7. If you don't go to the movies by yourself because you have an inherent need to discuss movies/films after you see them, think about using your blog.