Earn 5% Cash back for purchases at restaurants and movies from April 1, 2012 to June 30, 2012 when using your Discover Card.  The 5% cash back is subject to $1,500 cap for the period.  Effectively, you can get a maximum of $75 back if you make $1,500 in restaurant and movie purchases.  You must sign up to qualify for the 5% cash back.