mikeaz123 said:

I'm not positive, but in the States I believe the last big title was Godfather 2. In the UK, most likely it was Star wars. Would be interesting to hear for sure though.

Actually, Technicolor had a lab in Italy I believe, that remained open until '79 or '80. I've heard there is actual IB prints of Empire Strikes Back in Italy, but whether this was a one off test print for Lucas's archive or not, I don't know. I did have a trailer for Grey LAdy Down (79) that was IB and had dutch subtitles, so likely that was from the Italy lab.

From what I've heard Star Wars was indeed the last one in UK before they closed and I thought that Argento's Suspiria was the last one in Italy? (Also a '77 film.)