Originally Posted by 2MuchMark

My pleasure! And again they ALL tie in together, some more than others. If you can watch all of them you'll be up to date. FYI they are all lots of fun.

Some are better than others too. Captain America: The Winter Soldier, is by far the best of the series. Thor 2011 is probably the worst. Still "ok", but more or less forgettable.

Don't forget to watch the post-credit scenes. Each one usually references another movie in the future. Some hint at Infinity War, some do not, and some are just for fun.