How similar or different is theatre from cinema?

There are a few similarities between theatre and cinema. Theatre and cinema both serve to entertain its audiences. Depends on the taste of a particular individual, the plays/movies being played at theatres and cinema are remedies for boredom. These two areas are also places for people to socialize. The gathering of people of the same interest creates much opportunity for individuals to exchange opinions, thoughts and therefore make new friends. The movies and plays that are shown in cinema and theatre share some similarities as well. They both have a cast of actors and actresses. They act according to the script and directors wishes.
What separates theatre from cinema is in a theatre, the play is performed live. In contrast to theatre plays, the movies that are shown in cinemas are produced and edited before making their appearance at the silver screen. Some theatre also has strict rules regarding dress code and punctuality. Unlike cinemas, as long as you can afford the ticket, there are no dress codes or rules such as “No admittance after play starts”. Movies shown in cinema are on a daily basis. Everyday, there will be some movie that is going to be played on the silver screen. On the other hand, plays in theatre are not shown that often.
These are some of the similarities and differences that I could come up with. As time allows me to get more familiar with theatre, I might be able to list down even more similarities and differences.