If you did not get contact info (why not?), look them up on IMDB pro and repeat above instructions. AND for the future when you meet someone:
1. Ask a question or find a common interest that sets up a reason to follow up
2. Ask for contact information and how they prefer to be contacted
3. Whenever possible, tell them when you plan to follow up
Be sure when you follow up, you're calling for something specific that they can say YES to. Don't ask for work before they know you, like you, and trust you.
For more tips and articles by top entertainment industry coach, the Greenlight Coach, visit www.theGreenlightCoachBlog.com