I've changed this back to 42 minutes. I'm not sure where 87 has come from but the previously set runtime of 45 reflected the time for the actual feature described here (listed as 42 on Wikipedia which is about right from my memory of watching it around a year ago). The 68 minutes listed on both IMDb and Amazon Video relate to the time for the main feature combined with two unrelated shorts which play after it on Amazon Video, I assume due to being included with the dvd. I don't know the names of these or if they have separate TMDb pages. I believe 42 is correct for this page as it is for the film "Scooby-Doo! Adventures: The Mystery Map!" itself rather than the dvd, but I'll stand corrected if that's not the case.