A few weeks ago, we published a photo of Bradley Cooper on the Boston set of the new David O. Russell movie with rollers in his hair. Now we know why he was wearing them. Cooper was spotted with this curly ’do during the local shoot of the A-list drama on Tuesday. He was joined by his costar Jennifer Lawrence, who also sports memorable hair in this film. There were a number of big equipment and craft services trucks lined up for the movie near Stuart and Tremont streets near the Wang Theatre on Monday night. As you can tell by Cooper’s pants, the movie takes place in the 1970s.