Rein/ Reign

Ashley Banjo and Carol Vorderman are hosting the Pride of Britain Awards on TV tonight.
In the trailer, Ashley says ‘join Carol and I’…. It may be he wrote that himself, in which case he should’ve been told it’s Carol and me. Surely, a script writer should have known better though, if professionally written?

I hate this kind of thing too. Mixing up there and their drives me mad but my pet hate is was and were . Think singular ad plural

Perhaps people would remember which is which if they connected "free rein" with the rein that keeps a horse doing what the rider wants it to? If it is on free rein, the horse can do as it likes.

The other word, "reign" has a G in it. G for "govern" ? The monarch reigns/governs - at least they used to, before power shifted to Parliament.