Actor Riz Ahmed, who will be playing Bodhi Rook in the upcoming Rogue One: A Star Wars Story this December, was on the Late Show last night with Stephen Colbert promoting his HBO drama The Night of. Colbert, a big Star Wars fan, naturally took the opportunity to ask him if there was anything at all that he could tell us about the upcoming Star Wars film.

Although he was not very forthcoming with any new information about the movie, he did describe the intensity of the filming process, where his inability to empty his bladder between shoots ramped up the intensity on the set. The Rogue One discussion starts at around 6:40.

It’s kind of different to the other Star Wars movies. It feels very immersive and it’s like a “boots on the ground” feel. We’d just do these really intense scenes and we’d do it again and again and again, without stopping, just again and again. The whole film has a really intense energy, and partly that’s because of that process but partly because like we never got a break to go to the toilet in that process at all.