There you go: all I know about this place!
Thanks for the report!
The El Cap has a fun acoustical thing, if you can get the chance to try it - sit on opposite sides of the theater, in the same row, under the opera boxes; talking in a normal voice, you can hear the person at the other end of the row as if they are sitting right next to you. It may not work with the theater full, and ushers may need to be persuaded to let you try it. If you can, it's a cool effect. The theater itself is always themed inside and out for the movie playing at the time, with some sort of extra display (props...) It is a fun place to see a movie, too, especially with the extras if you can afford it once in a while.
If you are into more late night type content, it isn't too hard to get into Jimmy Kimmel show. There are people outside the theater a few hours before showtime to sort of sign in with.