Tip: Making zoom movies efficiently
When making zoom movies, you can save time and disk space by making the fractal window fairly small -- perhaps 160 by 120 -- before rendering the zoom movie. Fewer pixels means less calculation time and storage space, but it has surprisingly little effect on the quality of the resulting animations. You can size the movies larger when playing them back, with very little loss of quality.
The best way to make your zoom movies look great is to turn on antialiasing when rendering the movie, and then make sure that bilinear filtering is enabled when playing back the movie.