Do I need 3D glasses to watch a 3D movie?
Yes you will need special glasses to watch a 3D movie because during a 3-D movie, the movie screen shows you two different pictures. Essentially, you need the glasses to decipher these images and merge them into a 3-D picture. Often, you'll find the glasses will come as part of the package but you may need to buy additional pairs so all the family can watch.
What does the surround sound actually do?
Most films are recorded so that the audience can hear noises all around them, allowing you to feel like you're a part of the movie! To get the full benefit from this at home you need multiple speakers in a surround-sound system. Each speaker in a surround-sound system is assigned different sound making for a richer, fuller more authentic sound.