Wow. Money/Hollywood talks, I guess, but that will be a big shame for pilgrims/tourists who are there at that time, perhaps especially more so for tourists who make a special trip to Tomar just for the convent (easily the most impressive historical monument on the CP, in my view), only to find it closed.
Thanks for the heads up, though. Hopefully this news will travel up and down the grapevine so pilgrims can adjust their schedule and/or expectations.
The town of Tomar actually has a very weird relationship with the Convent of Christ, which is a national historic site. I used to follow one of the local online papers from Tomar, though eventually it got so gossipy that I got fed up with it and quit reading it.
However, the definite impression that I got was that the town itself saw very little tourist revenue from the site, and the administration of the site really didn't speak to the Tomar Tourist Office at all--it seemed to operate in a bit of a vacuum. Until a couple of years ago, there was no local bus that went up the hill to the convent (for those who couldn't handle the walk). That has changed now.
As far as I could tell, none of the admission revenue or parking revenue, or gift shop revenue goes to the town at all; it all feeds into the national historic site program. Which I imagine sorely needs it.
But the sense in town was that they really didn't benefit much from having the Convent of Christ there at all, other than people perhaps stopping for lunch before or after visiting the castle. And they had no say in decision-making or programming for the site. Thus they probably also had no say about the closures for movie-making.
Sadly, the town doesn't really have too much in the way of other historic buildings. They have the synagogue in the old part of town that has been rebuilt, but it's really very small and only interesting to a fairly specialized group of visitors. Their big historic festival, the Tabuleiros festival, only happens every 4 years. And the town itself doesn't really have nice walks, or particularly impressive parks compared to other towns.