Yes, actors and actresses are really important to movies. They make the characters feel real and help the audience connect with the story. A good performance can make us feel happy, sad, or excited. Also, famous actors can attract more people to watch the movie, which helps with ticket sales. Their acting can really influence whether a movie is successful or not.

I don't think actors and actresses are the most important part of a movie. Sometimes, the script and direction are what really make a movie great. Special effects and cinematography can also be more impressive than the acting. Some movies do well because of a strong story, even if the cast isn't famous. People might care more about the plot than who's acting in it.