CREDITS SUDDEN IMPACT, 1983 dir: Clint Eastwood Clint Eastwood Sondra Locke Pat Hingle Bradford Dillman Michael V Gazzo

“We're not just gonna let you walk out of here. Smith and Wesson and me. ”

Fourth outing for Dirty Harry Callahan, and the only one directed by star Clint Eastwood himself.

Reputedly no longer welcome in cute, touristy and liberal San Francisco, most of the action is shifted to the fictitious ‘San Paulo’, to which Harry is transferred after his methods continue to wreak havoc. ‘San Paulo’ is, in fact, Santa Cruz just down the coast on Highway 1.

Gaping plot holes and outrageous coincidences mean that this is hardly the greatest movie of all time, but Eastwood’s line as he deals with the robbery at the ‘Acorn Cafe’ has passed into legend : “Go ahead, make my day”. The restaurant was Burger Island, now a McDonald's, 901 Third Street at Townsend, San Francisco.

By the way, at the opening of the shot, you'll see the Lefty O'Doul Drawbridge, featured in 1985 Bond movie A View To A Kill.

Before he's banished from the city, Harry causes a bit of a stir at a wedding party, by provoking suspect Threlkis (an uncredited Michael V Gazzo, Pentangeli from Godfather Part II) into a fatal heart attack. The party seems to be at San Fran's prestigious Mark Hopkins Hotel, 1 Nob Hill at California Street. This is only used for the exterior, though. Since most of the film was being shot in Santa Cruz, the ballroom is the more convenient (and presumably cheaper) Cocoanut Grove Ballroom, 400 Beach Street, on the Santa Cruz Boardwalk.

Sudden Impact location: 'San Paulo' fairground: The Santa Cruz Boardwalk

Surprise! Jennifer (Sondra Locke), the killer of the victim discovered in San Francisco at the opening of the movie, is also down here restoring the Carousel on the famous old Boardwalk. She's avenging the rape of herself and her sister by the son of – surprise! – the chief of police who's now Harry's superior. Small world, huh?

It's on the Santa Cruz Beach Boardwalk that the final confrontation takes place, with a reprise of “Come on, make my day.” The villain makes a spectacular final dive from the venerable wooden rollercoaster, which you'll probably recognise from Joel Schumacher's The Lost Boys.