Complex sentence: The movie ends with Megan, Burrows, Paul, and Frank moving toward the city; however, the movie reveals that some zombies, including many other zombies moving toward Missouri's wilderness area, have survived.
Split into simpler sentences: The movie ends with Megan, Burrows, Paul, and Frank moving toward the city. However, the movie reveals that some zombies, including many other zombies moving toward Missouri's wilderness area, have survived.