We begin with the letter "A" and name a Movie beginning with that letter. The next poster does "B" and gives the name of a Movie beginning with that letter, etc. The next poster does "C", and so on. We continue using all the letters of the alphabet, one by one. Then we begin all over again, and keep going.
There are a lot of animals out there in our world, let's see how far we can get.
I guess I'll start with A so...
A - Alligator