Here’s a great trailer: Noah Baumbach’s “While We’re Young.” The best film to debut at this year’s Toronto International Film Festival will arrive in limited release on March 27, 2015, before a nationwide bow in April. That’s good news for people who like fantastic, thoughtful comedies about generation gaps and/or movies where Ben Stiller plays a flustered everyman. Naomi Watts, Amanda Seyfried, Charles Grodin, Ad-Rock from the Beastie Boys and that guy from “Million Dollar Listing” all co-star, but it’s Adam Driver who steals this one. He’s a Jedi master of awesome (as is Baumbach’s music supervisor, as evidenced by the two Paul McCartney and Wings songs used in the teaser). Watch below.