It’s one of the most famous lines in cinematic history… “That’s not a knife. That’s a knife.”

That same phrase has also landed fast-food chain Grill’d in the firing line after the company used it in an advertisement.

Crocodile Dundee star Paul Hogan is now taking legal action.

Ross Greenwood speaks with his lawyer Andrew Robinson.

“We asked the Grill’d group to stop using the phrase and they refused.

“Someone within Grill’d must’ve said it is for our personal advantage to use that quote, which I should say is actually a misquote.

“But then to attribute it to Paul’s alternate personality… what’s the association?”

Click PLAY below for the full interview