(Portland, OR) -- Broadway in Portland is throwing a Back to the Future block party this evening to mark opening night of the North American tour of Back to the Future. Southwest Third Avenue will be blocked off between Market and Clay, so four DeLoreans can be on display. There'll be two food trucks: Holy Melt and PJ's Pizza Wagon. You're invited to come dressed as your favorite character from the movie or just your best 50s or 80s attire. The first 400 guests will get a complimentary limited-edition Portland BACK TO THE FUTURE poster. It runs from 5:30 to 7 p.m.