A great, if rather short, featurette for X-Men: First Class has shown up online, which is almost like a trailer with commentary from the likes of James McAvoy and Michael Fassbender. There’s loads of cool footage, along with plenty of plot info about exactly how the Cuban Missile Crisis fits into the film, as well as what Sebastian Shaw (Kevin Bacon) and his army of evil mutants are up to. It certainly makes the film look pretty intriguing and a very interesting prequel to the previous X-Men film, showing us how Charles Xavier (McAvoy) and Erik Lensherr were once friends, before they became Professor X and Magneto. The movie arrives in UK cinemas June 1st.