Here's a thought. Maybe your friends aren't as concerned with the technical side of the movie. Some people just go to a movie to be entertained. Perhaps you can impress your friends by STFU while they're enjoying a movie. I think the other movie patrons would feel the same way. If you must dissect a movie, why don't you discuss how Superman would really fly due to the yellow sun. Then, I will wonder why your real problem isn't believing that someone could fly at all.
Here's a thought. Maybe your friends aren't as concerned with the technical side of the movie. Some people just go to a movie to be entertained. Perhaps you can impress your friends by STFU while they're enjoying a movie. I think the other movie patrons would feel the same way. If you must dissect a movie, why don't you discuss how Superman would really fly due to the yellow sun. Then, I will wonder why your real problem isn't believing that someone could fly at all.