Hill has signed up to star in a new movie version of the show and he recently revealed a cameo role has been written for Depp to return to the project that kick-started his career.
But Depp is worried producers have changed their minds about bringing him in for a guest appearance, as he hasn't been approached about the part - and he's appealing to Hill to get in touch.
He tells MTV.com, "I've said I'm into it, but no one's actually approached me... Call him. I'm in. I think it'd be pretty easy."