Zagreb is graced by yet another world festival of animated film. Many visitors have arrived to see the best and the brightest in the genre. But it is interesting to consider the origin of this craze. It all started with Dušan Vukotić’s “The Substitute” (1961), which was produced by Zagreb Film. Drawn admirably in a style suggesting that of Joan Miró, it featured a funny little man who came to a beach armed with a small pump and a whole bunch of inflatables—a lounge chair, a boat, a girlfriend… Whence the memorable title. As luck would have it, the animated film got the Academy Award for Short Subjects in 1962. The interest in the genre inflated with the Oscar, and Zagreb took off as one of the world capitals of animated film. Yet another inflatable by Vukotić, I reckon. And a suggestion from the sidelines for “The Substitute II.” By way of a hint, the funny little man ends up by deflating everything, including himself.