I KNEW IT!!! I knew Chomper's egg was aliens' egg!
you meant VII? 
Phew... Mo-o-o checked rules and Mo-o-o did not make a dumb mistake this time.

Poster 1 first says the movie name
Then poster 2 describes it in one word (well... some used more words but idk it might be boring if we always used one word?). Then poster 2 says another movie name
And the cycle repeats...