With the cat out of the bag after last night’s screening of The Girlfriend Experience , Some Came Running‘s Glenn Kenny has written about his cameo role as a sleazy website manager. And he confirms that yes, he “did write that nasty voice-over ‘review'” himself, and that “all of the dialogue of the film was in fact improvised.”

Reactions to Kenny’s cameo as well as the film have been generally favorable thus far. The best line has come from Cinematical’s James Rocchi (actually quoting someone else), to wit: that The Girlfriend Experience is “a period piece from October 2008.”

Here are reactions from N.Y. Post critic Lou Lumenick and Spoutblog‘s Karina Longworth. I put mine up last night, of course.