Amex is now running a promotion where you can get 4 free movie or museum tickets by meeting specific purchase requirements at select merchants, which in most cases means making 2 or 3 separate purchases. Once you have completed the purchase requirements, you’ll need to send in the receipts along with the appropriate redemption form to receive your tickets. If no participating theater or museum is nearby, you’ll receive a $40 Amex gift certificate instead. For the full list of participating merchants, museums and theaters, see the promotion website.

For those that live near a Del Taco restaurant, eating there seems to be the easiest way to fulfill the terms of the promo, particularly since there is no minimum purchase requirement. While you have until May 31, 2008 to complete all of your purchases for the other merchants, Del Taco purchases must be made by May 20, 2008. (Via SD).