"corked" in properly kept wine is very rare.Don’t know I don’t drink posh stuff..it could be “corked” Iv heard that saying in many movies
Keeping bottles on their sides so the cork is kept moist and swollen in the neck of the bottle prevents the air from getting to the wine. In all my time both as a wine waiter and as a private person who keeps a couple of cellars i've only come across one or two cases of corked wine.
So yes, stuff of the movies!!