I had watched a movie a long time ago. The main character was a young man who works in an advertising agency and had problems with a project, he could not invent advertising. His colleague mocked him that he would be fired and he would take his place. He and a friend invited him to take off babes, they went to restaurants. In one scene they entered a church and there were many girls at the funeral. I think the action took place over a weekend and ended in a happy ending - he made up the ad and he wasn't fired.