President Barack Obama is joining the cast of Entourage, sort of.

The HBO show's star Adrian Grenier announced on his official Facebook page on Friday that he would make an Entourage movie if Obama agreed to make a cameo — and he's agreed, Grenier claims.

"I promised to make the Entourage movie if he would do a cameo. He agreed," Grenier said, posted above a photo of himself with the President.

"Seriously."

If it's true, Barack won't be the first Obama to make the leap to the big screen.

His wife and the First Lady, Michelle Obama, has made appearances on Extreme Makeover: Home Edition and Nickelodeon's iCarly.

Entourage had a successful run on HBO from 2004 until its season finale in 2011.

HBO剧集《明星伙伴》（Entourage）于去年全剧终，该剧制作人道格·艾林（Doug Ellin）自剧终后一直在筹备电影版的拍摄，近日该剧主要演员艾德里安·格尼尔（Adrian Grenier）在Facebook爆料称美国总统奥巴马已答应客串该剧电影版。

艾德里安在Facebook上发布了配图的图片，并发文称“我保证过如果他来客串电影版，我就会演，他答应了，我没开玩笑。”

奥巴马曾于2008年表示过自己喜欢看HBO的两部剧集——《明星伙伴》和《火线》（The Wire），去年12月接受《人物》杂志采访时，他提到最近喜欢上了HBO的《海滨帝国》（Boardwalk Empire）和Showtime的《国土安全》（Homeland），他还喜欢和女儿一起看家庭喜剧《摩登家庭》（Modern Family）。