I stick to my original opinion that they could film the whole movie with the Castle cast over the course of 6 or so weeks during next summer’s hiatus, and use it to fill in the weeks during the season that they don’t have a new episode. Get ‘em booked up now, so they don’t find any other projects. ;)
Heck, if you kept it simple, you could film it in 3-4 weeks. The only problem is that I’m guessing the actors want the freedom to do other projects. So that makes it difficult. But still, I WOULD LOVE THIS.
thisididdy this this THIS!