French TV sta­tion Canal have posted an extended 7 minute behind the scenes look at Iron Man 2. The video starts off in French but the inter­view with direc­tor Jon Favreau is in Eng­lish; you’ll here him talk about Stark’s home made par­ti­cle accel­er­a­tor. There’s also an inter­view with Robert Downey Jr., talk­ing about the chal­lenges of film­ing a sequel. An insight­ful look at the Iron Man sequel and def­i­nitely worth the watch.