Emile Hirsch [1] has entered rehab, according to E! news [2]. The actor was charged with aggravated assault [3] for allegedly choking a female Hollywood executive during the Sundance Film Festival in Utah earlier this month. Police reports state that he put a woman in a choke hold at Park City's Tao nightclub. The two had reportedly never met until then, and Emile's attorney told E! [4] that the actor had consumed "an enormous amount of alcohol that night" and "has no memory of what happened." He's due in court in mid-March, and if he's convicted on the third-degree felony aggravated assault charge, Emile could face up to five years in prison [5].