Interpol (1957, Victor Mature, Anita Ekberg, Trevor Howard)

Airport scenes feature a glimpse of BOAC 545BMK, a 1954 Duple bodied Bedford SBG:
Also seen is a London Transport Leyland RTL:
Perhaps more significant is footage of Short Solent flying boat G-AKNU 'City of Sydney'. This aircraft crashed on the Isle of Wight in 1957 with the loss of 45 lives: