By Mandi Bierly
Updated August 30, 2007 at 06:22 PM EDT

When has a celebrity’s endorsement of a movie, TV show, album or book convinced you to give it a look or a listen? Here’s why I’m asking: Last weekend, I’m visiting my parents again and I sat down to watch season 1 of Gunsmoke on DVD with my dad. (He’s a big fan; I’ve never seen the show but think I should.) We press play on the first episode and find ourselves staring at John Wayne (below), who tells us — as he did the audience who tuned in to the premiere in 1955 — that he wishes he could be on the new series because it’s “honest,” “adult,” and “realistic.” John Wayne has to be the best endorsement a Western can get, right? Suddenly, I’m interested in Marshal Matt Dillon (and how close he is to Miss Kitty Russell), and I don’t even mind that my father feels the need to point out every time Deputy Chester Goode refers to him as “Mr. Dillon.”

Your turn. What endorsements hooked you, for better or worse? Maybe you went to see Hero and Hostel because they were “presented by Quentin Tarantino.” Maybe you finally checked out Veronica Mars after Joss Whedon raved about it in EW. Maybe you bought a band’s entire catalog because Daniel Radcliffe (or the teen idol of your choice) said they were brilliant.