Mitt Romney has recently revealed himself as a "Friday Night Lights" fan, using the phrase "Clear eyes, full hearts, can't lose" in his stump speeches.

Writer-director Peter Berg is not amused. In a letter given to the Hollywood Reporter, he accuses Romney of "plagiarism" and "falsely and inappropriately" associating his campaign with the beloved high-school football show. 

"The only relevant comparison that I see between your campaign and Friday Night Lights is in the character of Buddy Garrity — who turned his back on American car manufacturers selling imported cars from Japan," Berg wrote. (Our Celebritology blog sees Romney as more of a Joe McCoy). "Please come up with your own campaign slogan." 

Buzz Bissinger, who wrote the nonfiction book on which "Friday Night Lights" was based, recently endorsed Romney in a Daily Beast editorial.

President Obama isn't above trying to grab a bit of the FNL magic — just look at this post from May on his official Tumblr. But he hasn't adopted the Dillon Panthers' mantra the way Romney has. The Romney campaign did not return an immediate request for comment.