I ain't got 7.50 to pay."

If you know that jingle, i'm amazed we both know of that. :0
So a hairless cat named FeatherPluckn showed me a very enjoyable show. Needless to say I fell in love with it, it's really funny and clever and riffs a ton. Anyways, this is Mike and Feather in a theater, watching another group, in a theater, watch a movie. Theaterception, ugh!

It's been a long while since I brought back some common themes in my drawings, can you spot the three?