If you’re not paranoid now, you might well be after catching the “Paranoi-a-thon” at the Two Boots Pioneer Theater.

Five classics and one world premiere will unreel, kicking off Wednesday with Anatole Litvak’s nifty noir “Sorry, Wrong Number” (1948).

The time is 9:25 p.m., and bed-ridden Leona Stevenson (Barbara Stanwyck) is trying to call her husband (Burt Lancaster) at his office.

Alone in her Sutton Place townhouse (with a wow view of the 59th Street Bridge), she instead overhears a phone conversation between two men planning a murder for 11:15 that night.

Gradually she realizes that she is the intended victim.

Using flashbacks and flashbacks within flashbacks, the film tautly and suspensefully reveals who wants her dead – and why.

Stanwyck gives a grand performance, running the gamut from cocky seductress to whimpering victim.

Also skedded for the Pioneer festival, which ends Sept. 3, are two by John Frankenheimer, “Seconds” (1966) and “The Manchurian Candidate” (1962), as well as Alan J. Pakula’s “The Parallax View” (1974), Roman Polanski’s “Rosemary’s Baby” (1968) and Mark Christensen’s “Box Head Revolution” (2002), a minimal-budget sci-fi adventure that we’ll review when it opens.

The Pioneer is on East Third Street, off Avenue A, in the East Village; (212) 254-3300.

* BAM Rose Cinemas in Brooklyn will mark Sept. 11 with free screenings of Woody Allen’s 1979 ode to his beloved city, “Manhattan” (1979).

The movie, which also features Diane Keaton, Mariel Hemingway, Michael Murphy and Meryl Streep, will screen at 2, 4:30, 6:50 and 9:10 p.m.

Too bad Woody can’t make movies like that any more.

* Here’s a chance to catch Elvis Presley in widescreen CinemaScope.

“Jailhouse Rock” (1957) and “Viva Las Vegas” (1964) unspool on Saturday, at 2 and 3:50 p.m., respectively, at the Galaxy Theater in Guttenberg, N.J.; (201) 854-7847.

* The definitive screen version of “Beauty and the Beast,” made in France in 1946 by Jean Cocteau, is getting a revival, through Aug. 29, at the downtown Film Forum.

Josette Day is la Belle and Jean Marais is la Bete. Dig those exploding walls!