Trivia: As of 2022, this is the only widely-released theatrical film to feature David Boreanaz in a starring role. His only other starring film roles have been in TV-movies, limited releases and direct-to-video movies. (Although thankfully, he is an incredibly successful television actor).
Suggested correction: Those are very narrow parameters that could describe a lot of TV actors, but how would you classify "The Mighty Macs" (2009)? He has a starring role that opened to almost 1,000 theaters its opening week and remained in theaters over a month (albeit with reducing numbers of theaters showing the film).