This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.CHICAGO — For millions of fans, the wait is over. The long-awaited “Avengers: Endgame” opened in theaters Thursday night. And fans at the River East theatre in downtown Chicago were excited and ready to go. There were costumed heroes and villains alike in line. The first audiences got to go in at 5 p.m. for the first showings. Some people have been at the theater since Tuesday for a 22 Marvel Movie marathon in the run-up to “Endgame.” And many theaters are showing the movie around the clock to accommodate the demand. WGN’s Dean Richards was at the theater Thursday and caught up with fans. You watch catch Dean’s spoiler-free review here.