Lisbon 67: Film of Lions shown for first time in 50 years
The documentary will be broadcast on STV2 to mark 50th anniversary of famous win.
The great trek made by thousands of Celtic supporters to Lisbon in May 1967 has taken on some of the mythical qualities associated with the heroics of the first British team to win the European Cup.
By air, road and sea, 12,000 expectant fans - which at the time was described as "the biggest sporting exodus in history" - started arriving, singing and dancing in the Portuguese sunshine.
It came almost 80 years after Brother Walfrid founded a football team with the aim of helping, representing and feeding the poor and hungry people of the east end of Glasgow.
The historical moment and journey across Europe was captured in a documentary that will be shown on STV2 at 8pm on Thursday - exactly 50 years after the stunning victory.
Film-maker James Gordon captured everything from the excited army of Celtic fans making the trip from Glasgow, to the famous match.
The Hoops overcame the stifling defensive strategy of Inter Milan's catenaccio to win 2-1.
The film features the side's relentless attacking play, including game analysis and reaction from legendary manager Jock Stein.
Rarely seen footage of celebrations on the pitch after the final whistle and the jubilant crowds lining the streets waiting for their heroes as they returned to Scotland will also be shown.
The footage, unseen since it was originally aired in 1967, offers an insight in to a moment in time that has defined the highs of Celtic ever since.
The names of the players that brought the European Cup back to Glasgow still roll off the tongue of every Celtic fan - even those not born until 30 years after the win.
Simpson, Craig, Clark, McNeil, Gemmell, Murdoch, Auld, Johnstone, Chalmers, Wallace, Lennox and Stein - names unlikely to fade into history with their achievements on that sunny day in Lisbon even less likely to be matched.
Celtic '67, the documentary, will be shown on STV2 at 8pm on Thursday.