Help with regular expression

Hello! Please help... i have a small problem:

I have:

ALBUM: Hello world - Mood Records

I need:

ALBUM: Hello world
PUBLISHER: Mood Records

How to seperate %album% string and all after "- " move to %publisher% ?
Thanks.

Create an action of the type "Guess value" (import tag field) for ALBUM
Enter as string: %album% - %publisher%

Big thank You!