I sat down to watch "Mostly Ghostly 3: One Night in Doom House" with my six year old son, but he quickly lost interest in the movie, and I was left with the movie alone. At the time when he gave up, I wasn't particularly impressed with the movie, but still decided to continue on.
In all honesty, then I didn't get to finish the movie, because it just never appealed to me in any way. Sure, this is a 'scary' movie for the youngsters, but it could just as easily have had some appeal to an adult audience as well. Sadly, it didn't.
The storyline was semi-adequate, at least up to the point where my interest dwindled fully away. But there was just something lacking from the movie, because you never really fully immersed yourself into the storyline.
The acting in "Mostly Ghostly 3: One Night in Doom House" was good enough, but I can't really put a finger on any one particular performance that stood out. It was somewhat of a surprise to see Danny Trejo and Jamie Kennedy make an appearance in a movie such as thing, perhaps mostly so for the part of Danny Trejo.
A ghost movie, despite it not really being meant to scare, still needs to have good effects to be fully convincing, and "Mostly Ghostly 3: One Night in Doom House" didn't really have impressive effects. And that was also one of the reasons why my interest in the movie was ebbing fast.
"Mostly Ghostly 3: One Night in Doom House" is a movie for a young audience, no doubt about it, and I am sure that there is a solid following of the series out there somewhere. But those people were not in our household.
The movie lands a less than mediocre four out of ten stars rating from me. And I can with all honesty say that I am not going to return to the movie to finish watching it.