Some of these pictures and descriptions may give away plot details that you might not want to know before watching the film.
The second movie in Disney's Pirates of the Caribbean franchise, this is a family adventure film about lovable murdering pirates, cannibals, undead sea humans with fish heads, and, most evil of all, the East India Trading Company - seafaring Capitalists who want to get rid of all pirates. During two of the scenes in the movie where everybody is not sword-fighting, we see a couple of snakes.
The first snake shows up in one of the scenes that helped this billion-dollar-grossing movie win an Oscar for visual effects. After pirate Captain Jack Sparrow (Johnny Depp) beaches his pirate ship on an island where a gigantic sea monster can't kill him, he and his crew are captured by cannibals. Depp is made King, but most of the crew become lunch for cannibals. The few crew members who were not eaten, are imprisoned in circular cages made of the bones of the crew who were eaten. The cages are suspended on ropes hung between two very high cliffs. The men attempt to escape by making the cages swing back and forth until they reach one of the cliffs where they grab onto vines growing on the cliffs. They grab the vines and pull on them as they walk up the cliffs. When they see a cannibal above them on a suspension bridge, they stop and stay quiet to remain unseen by the cannibal. But the two cages are competing to get back to the ship first and the men of the second cage decide to take advantage and continue climbing, trying to beat the first cage. One of those men accidentally grabs a snake instead of a vine and screams "snake!!" which causes everyone in his bone cage to panic and drop their vines. The second cage swings away from the cliff, breaking the rope that holds it, and the cage and all the of men fall to the bottom of the cliffs. With the snake, I assume. The men in the first cage climb to the top of the cliff where they roll around the jungle like a hamster in a ball, trying to get away from the cannibals.
It's nice to see a scene in a movie where a fear of snakes causes unnecessary mass death. The message I learned is that it's better not to be scared of snakes. The snake used here is a live and harmless Milk Snake.
The second snake shows up when Captain Jack visits voodoo priestess Tia Dalma (Naomie Harris) who lives in a shack built on a tree in the middle of a forest swamp. The house is filled with weird things she uses in her witchcraft, including a jar full of eyeballs and an albino python hanging from the branch of a tree that is growing in the middle of the house. With so many other bizarre distractions in the house, nobody pays any attention to the snake. The snake appears to be an albino Burmese Python.