When he released Raiders of the Lost Ark back in 1981, Steven Spielberg intended it to be nothing more than light entertainment; an homage to the swashbuckling adventure films of yesteryear. Little did he know, however, that in giving life to George Lucas's intrepid archaeologist, Indiana Jones, he was helping to create one of the most endearing and widely loved franchises of all time.
The tale of an archaeologist who lecturers at a prominent American university for a day job and spends the rest (admittedly most) of his time hunting for elusive and mysterious artefacts across the globe never fails to impress and inspire audiences. Besides being an action adventure movie, it is also regarded as quite a romantic one, firstly because Karen Allen co-stars as Indy's old flame, Marion Ravenwood and due to its endearing reliance on older filmmaking techniques.
There is an explicit level of detail contained within the movie and it is filled with little Easter eggs and references that can easily be missed. However, all of them contribute in their own small way in making Raiders of the Lost Ark a glorious cinematic experience and something of a modern epic.
Here are 20 of the most notable things in the film that often go unnoticed.