What qualifications do you need to become a stage manager in theatre?

Stage Management is a hard job requiring a ton of patience, diplomatic skill, and the ability to keep a group of artistic people focused. Many colleges have majors in stage management. The duties of a stage manager include (but are definitely NOT limited to):

Review script for essential prop, costume, set, light, sound and special effect elements.

Make a production schedule for entire process from audition to final strike.

Conduct production meetings between all department heads.

Write and distribute daily reports for rehearsals, production meetings and performances.

Ensure that communication between all departments is open and flowing.

Ensure that all actors are on time for performances and rehearsals.

Setup all rehearsal spaces with proper rehearsal set and prop pieces.

Conduct rehearsals, correcting missed lines.

First one in, last one out.

Accept blame for any and all of the above if they are not flawlessly executed.