Ron Howard recently shot a sketch reuniting several SNL cast members on FunnyOrDie.com. It involves President Obama and his wife, Michelle (played by Fred Armisen and Maya Rudolph) being visited by former Presidents George Bush (played by Will Ferrell), Bill Clinton (Darrell Hammond), George Bush Sr. (Dana Carvey) Jimmy Carter (Dan Aykroyd), Gerald Ford (Chevy Chase), and Ronald Reagan (Jim Carrey, who although not a cast member, did host in 1996, and had an appearance with the Foo Fighters in 2003).
The sketch serves as a platform to promote the proposed Consumer Financial Protection Agency and financial reform in general.
You can watch the sketch here. Don't forget to watch the "Making Of" video, and the extended scene with Dana Carvey.