Tension brewing on 'Entourage' set?

Did “Entourage” star Kevin Connolly turn diva when he directed an episode of the hit HBO comedy series?

The actor was behind the camera last week, and reportedly was such an “extreme perfectionist” that he made the cast and crew miserable by forcing them to work long hours.

Not so, said show creator Doug Ellin in an interview with the Los Angeles Times; the executive producer called stories of Connolly’s bad behavior are “absolutely ridiculous. He was as prepared and focused as any director I've had. There's a rat on this set and it's a weird thing. It's got to be somebody with a personal thing against Kevin.”

Ellin does, however, confirm that Connolly, 36, came to blows with leading man Adrian Grenier, 33, after the actor kept forgetting his lines. “He had a little argument with Adrian, whatever. Boys have arguments.”

Perhaps the guys hugged it out: On June 25, Grenier tweeted, “Shout out to Kevin Connolly. Congrats on finishing ep. #9.You did a great job on; Way to bring the fire! Maybe you should direct the movie?”