Join a film industry labor union such as The Directors Guild of America, The Screen Actors Guild of America, or the The Writers Guild of America. Access to screening copies of movies is usually by invitation only. This is the first step, however, that you can take in order to become eligible to receive such an invitation.
Keep your membership in good standing. Keep your dues current. Also, actively participate in industry events.
Keep your contact information up to date with member services. The email address on file with your film industry labor union must be current. This way, you will be able to receive links to secure sites for viewing digital copies of movie screeners online. Likewise, your mailing address on file with your union must also be current in order to receive DVD screening copies of movies
Wait for your invitation and for awards ballots.