TV Article Captain America: Civil War Twitter Q&A highlights By Devan Coggan Devan Coggan Devan Coggan (rhymes with seven slogan) is a senior writer at Entertainment Weekly. Most of her personality is just John Mulaney quotes and Lord of the Rings references. EW's editorial guidelines Published on April 26, 2016 06:37PM EDT Photo: Marvel Studios Team Cap and Team Iron Man will soon be facing off on the big screen, but before Captain America: Civil War hits theaters on May 6, the two sides took their battle to Twitter to answer a few fan questions. Producer Kevin Feige and directors Joe and Anthony Russo joined cast members Chris Evans, Anthony Mackie, Sebastian Stan, Emily VanCamp, Paul Bettany, and Elizabeth Olsen to talk about the upcoming film. While they were careful to keep any real plot details under wraps, they did reveal some crucial behind-the-scenes info about everything from Jeremy Renner’s singing voice to Chris Evans’ beloved beard. Here are some of the highlights from the Civil War Twitter Q-and-A. On the funniest thing that happened on set… When asked what made them crack up the most on set, the Russo brothers cited Paul Rudd’s improvised lines and Olsen named Mackie, but Feige called out a scene between Iron Man and Peter Parker. On Chris Evans’ facial hair… Evans may prefer to sport a lumberjack beard in real life, but Cap is clean-shaven, much to Evans’ disappointment. On which Avenger has the best karaoke skills… According to Evans, Jeremy Renner isn’t just a sharp shooter with a bow: He’s also got a pitch-perfect singing voice. On The Vision’s cumbersome costume… Poor Bettany revealed that when he’s in full costume as The Vision, it takes him 45 minutes just to go to the bathroom. On a possible Star-Lord cameo… Star-Lord is a bit busy with his fellow Guardians of the Galaxy, but if Olsen had to pick any actor to join the Avengers, she’d love to see Chris Pratt make an appearance. On a potential Bucky/Falcon spinoff… According to Stan and Mackie, they may soon be branching out into comedy.