Yes, different times. The original film did have as many as 18 B-25's (scrounged up by Frank Tallman, and with several coming from Jr Burchinal), but things were much cheaper then (engines, gas, parts), and the planes, back then, were considered more expendable. Furthermore, the filming for the original movie took place in Mexico, so there wasn't the need to fly them over the open Atlantic like there was for this new series. I know of another B-25/museum that had been requested by the producers for the filming of this new series as well, but they had to decide not to do it due to the logistics - the museum/team decided that flying the aircraft all the way to Italy from the US, and back, was considered too great a risk, especially if an engine failed while over there, and the cost of having to ship over a new one, and the crew having to pay more to stay longer, etc.
In this new Catch-22 mini-series, they also used the Ju-52 F-AZJU from France and the C-47 N147DC from the UK.