Classic scenes from that classic film, here we have an ex-Delta CV-880 taxiing for the cameras for a movie. Listen to those GE CJ-805s! Judging by all the interior shots, this appears to have been filmed on board the genuine aircraft. Delta, along with TWA, retired their Convair Jets in 1974.
The Martin P6M SeaMaster, built by the Glenn L. Martin Company, was a 1950s strategic bomber flying boat for the United States Navy that almost entered service; production aircraft had been built and Navy crews were undergoing operational conversion, with a service entry about six months off, when the program was cancelled on August 21, 1959. Envisioned as a way to give the Navy a strategic nuclear force, the SeaMaster was eclipsed by the Polaris submarine launched ballistic missile. Due to the political situation at the Pentagon, the Navy promoted the P6M primarily as a high speed minelayer.