I am an American Airline fan and have flown Internationally before so cannot believe I failed to check on the plane type and style. An older plane across International waters can be frustrating when you don't have a personalized screen on your chair to pick your movies, etc. Check the details of your plane with American!
Airport Info - recognize Lisbon airport is one of the hardest I have had to travel out of - it took over three hours and eight passport checkpoints to finally catch the bus to get to the plane on the tarmac. Pack your patience and walking shoes because it is crazy.