This weekend, two of the season’s biggest star vehicles are opening in theaters. “The Ides of March,” with George Clooney as a distinctly pre-2008 Obama-like candidate, and Ryan Gosling as an idealistic campaign staffer. “Real Steel” stars Hugh Jackman as a boxer eight years in the future, when robot boxing has replaced actual human boxing as America’s favorite bloodsport. Rafer Guzman, co-host of The Takeaway’s Movie Date podcast and is a film critic for Newsday, previews this weekend’s new releases.