Hours of entertainment

This has had me entertained for hours (very hungover today, so no refunds will be given if you don’t find it as entertaining as I have)… They’ve built a site that gives you the degrees of separation between movie stars. For example, Kylie Minogue has a Marilyn Monroe number of 3 (Marilyn was in The Fireball with Mickey Rooney, Mickey Rooney was in Erik The Viking with Jim Broadbent, and Jim Broadbent was in Moulin Rouge with Kylie). I’ve been at this for hours, and haven’t managed to find any pair who have a number greater than three. If you can, please let me know.