Just saw the movie Rome Adventure (1962) on TCM. Pee Wee Spitelera (clarinet) and Jack Delaney (trombone) are pretty easy to pick out, and I’m 80% sure that’s Ronnie Dupont on the piano. Can’t id the bass player though. Could possibly just be some actor, and not a real musician, but since the other three definitely played with Hirt, I’m under the assumption that the bass player did, too. Oliver Felix had played with Hirt as late as 1960, and possibly into 1961, but it’s not Felix. No clip at this time, but I’ll try to fudge something if this draws a blank.
Hirt’s scene is about 40 minutes in. Happy Hunting!