One of the things that I encourage aspiring actors to do is to keep doing amateur theatre. Many would be film actors are somehow loathe to even consider it. But that just shows their unwillingness to do what it takes to be a professional actor. Amateur plays hone one's acting skills. Until you are a member of AEA you need to use amateur theatre to stay sharp and to build your resume.
Amateur theatre also provides many opportunities to network and to promote yourself as an actor. Networking as I discuss it in "Networking for Success" on my website and in my ebook is the key to success as a professional. It is how you get your self known in the industry and how you learn about opportunities to further your career.
Consider the email I got this morning from one of my advisees. He already does quite a bit of professional acting in films and commercials, but he realizes the advantages of stage acting to advance his career.
Here are some excepts from his email:
"Well the ...show was a complete success.... and I felt completely free for most of the performances.My acting has come a long way and the past 2 years of hard work seems to now be paying off.
One of [the director's] friends who runs the only professional theatre company [in the area[ was impressed with my acting and said I was extremely strong throughout the whole show and would love to have me do a show with them.
In addition the agency I mentioned to you before ,,, liked what they saw as well and now I have a read with a leading agent on Friday."
Doing this amateur play is paying off for this actor. Doing amateur theatre can pay off for you as well. Maybe not in the first play, and maybe not until your networking takes effect. But for the aspiring actor it is an activity worth pursuing.