Action movies are (all) the 'fashion' in Hollywood these days. = Action movies are 'in fashion' in Hollywood these days.
We attended a 'fashion show'. [=a show at which people who design clothes show their new designs]
The student recited the speech 'parrot-fashion' and could not answer any questions about it.
(..) - Sarah! Sarah. - Hey. - Hi. - Hey. - Hey, guys, I need some fashion advice. How does this look? Well, it's-- It's a little low. Pick it up a little. A little bit more. A little bit more. There you go. Now throw it away. Come on! This looks good. Ross, please trust me. I buy fashion magazines a month. Now I don't know who's running for president or who that NATO guy is... ...but I do know that you have to get far away from that hat. Damn it. God... (..)2004 TvShow: Friends Title: The One with the Birth Mother Season: 10 Episode 9