18th Annual A Night at Sardi's

Demi Moore and Ashton Kutcher arrive at the function '18th Annual A Night at Sardi's' to benefit Alzheimers Association at hotel Hilton in Beverly Hills March 18, 2010.  (REUTERS/Mario Anzuoni)

Shenae Grimes arrives at the function '18th Annual A Night at Sardi's' to benefit Alzheimers Association at hotel Hilton in Beverly Hills March 18, 2010.  (AP/Chris Pizzello)

Kaley Cuoco arrives at the function '18th Annual A Night at Sardi's' to benefit Alzheimers Association at hotel Hilton in Beverly Hills March 18, 2010.  (REUTERS/Mario Anzuoni)

Lea Thompson arrives at the function '18th Annual A Night at Sardi's' to benefit Alzheimers Association at hotel Hilton in Beverly Hills March 18, 2010.  (REUTERS/Mario Anzuoni)

Demi Moore and Ashton Kutcher arrive at the function '18th Annual A Night at Sardi's' to benefit Alzheimers Association at hotel Hilton in Beverly Hills March 18, 2010.  (REUTERS/Mario Anzuoni)

Samantha Harris arrives at the function '18th Annual A Night at Sardi's' to benefit Alzheimers Association at hotel Hilton in Beverly Hills March 18, 2010. (AFP/Kevin Winter)

Kaley Cuoco arrives at the function '18th Annual A Night at Sardi's' to benefit Alzheimers Association at hotel Hilton in Beverly Hills March 18, 2010.  (REUTERS/Mario Anzuoni)

Shenae Grimes arrives at the function '18th Annual A Night at Sardi's' to benefit Alzheimers Association at hotel Hilton in Beverly Hills March 18, 2010.  (REUTERS/Mario Anzuoni)

Seth Rogen arrives at the function '18th Annual A Night at Sardi's' to benefit Alzheimers Association at hotel Hilton in Beverly Hills March 18, 2010.  (REUTERS/Mario Anzuoni)

Demi Moore and Ashton Kutcher arrive at the function '18th Annual A Night at Sardi's' to benefit Alzheimers Association at hotel Hilton in Beverly Hills March 18, 2010.  (REUTERS/Mario Anzuoni)

Soleil Moon Frye arrives at the function '18th Annual A Night at Sardi's' to benefit Alzheimers Association at hotel Hilton in Beverly Hills March 18, 2010.  (AP/Chris Pizzello)

Garry Marshall with wife Barbara arrive at the function '18th Annual A Night at Sardi's' to benefit Alzheimers Association at hotel Hilton in Beverly Hills March 18, 2010.  (AP/Chris Pizzello)

Seth Rogen and Lauren Miller arrive at the function '18th Annual A Night at Sardi's' to benefit Alzheimers Association at hotel Hilton in Beverly Hills March 18, 2010.  (REUTERS/Mario Anzuoni)

Chris Pine arrives at the function '18th Annual A Night at Sardi's' to benefit Alzheimers Association at hotel Hilton in Beverly Hills March 18, 2010.  (AP/Chris Pizzello)

Garry Marshall arrives at the function '18th Annual A Night at Sardi's' to benefit Alzheimers Association at hotel Hilton in Beverly Hills March 18, 2010.  (REUTERS/Mario Anzuoni)