Corduroy, a 1970s staple we're very happy to embrace at MR PORTER this fall, is a good place to start; perhaps a patch-pocket Bedford cord jacket like Sir Michael Caine wears in Pulp (1972). His slovenly author favours an all-white cord suit and geometric print shirt. (Warning: all white is a tough nut to crack.) Mr Woody Allen combines a white shirt and slacks in Annie Hall (1977) and it works. Mr Allen's cords, tweeds and plaids are quietly subversive - almost as if the 1950s woke up a hell of a lot smarter 20 years later. The key to a new take on the 1970s is not to be too bright or too clean. The 1970s embraces your inner scruff.
For another relaxed nod to the 1970s, try combining a stand collar polo shirt, preferably check knit, with a half-belt leather jacket. This worked like a charm on Mr Johnny Depp in Donnie Brasco (1997). These jackets button tight but are unpadded for a lean silhouette, and, take note, jeans work particularly well here, especially styles by brands such as Levi's Vintage and Jean Shop.
The 1970s means roomy through the chest and nipped in at the waist. Think low two-button fastening, double vents and peaked lapels. Nowhere is this better represented than on Sir Michael in Get Carter (1971). Wearing Mr Doug Hayward's Dormeuil Tonik mohair, single-breasted suit with a waistcoat, he owns the screen. Catch yourself in this ensemble, topped with Sir Roger Moore's chesterfield overcoat with velvet collar from Live and Let Die (1973) and you will be very happy indeed.
Adopting the suited look off duty allows for playful subversion. Consider Mr Richard Roundtree in Shaft (1971). He wears a cashmere rollneck sweater, reclaiming a classic for the street. The rollneck is a signature element of the modern wardrobe that hasn't lost the 1970s tang. Another is the high neck, deep collar shirt as worn by Sir Michael in Get Carter but comes off better on Mr Robert Redford in The Candidate (1972) where it begs a generous necktie and even takes on a bit of a pattern.
It's almost as if coats were reinvented in the 1970s - and staying warm never looked more luxurious. Mr Ryan O'Neal wears at least two spot-on examples in Love Story (1970), a grey wool coat and the now classic natural sheepskin. Don't fear working sheepskin coats layered over chunky knitwear. No, really, it works. Mr Christopher Walken takes it in another, more rural-inspired direction for The Deer Hunter (1978), keeping the elements at bay in a padded plaid shirt over knitwear, gilet with colourful shell and hiking boots. This is real wet weather man's gear, diametrically opposed to the preppie college boy.
The final way to channel 1970s style is to go brave. Chose a Texas check sports jacket similar to that worn by Mr Clint Eastwood as Dirty Harry (1971), No gentleman can resist the lure of dressing like Mr Eastwood for long. To be that man, dress like that man. Anyone for popcorn?