The 5,400-member PGA gave its Darryl F. Zanuck award jointly to Affleck, who also directed and stars in the movie, with his co-producers George Clooney and Grant Heslov.
The PGA award is seen as a key indicator of Oscars success: nine out of the last 12 winners have gone on to take the coveted best picture prize at the Academy Awards, including in every year since 2008.
Argo caused a surprise by winning best picture and best director for Affleck at this month’s Golden Globes, and is nominated in seven categories for the all-important Oscars, to be held on February 24.
It tells the story of a daring CIA mission to rescue six US diplomats who took refuge in the Canadian embassy in Tehran during the 1979 hostage crisis, bringing them out disguised as crew members for a Hollywood sci-fi film.
The movie’s rival nominees for the top PGA award included all of the main movies jostling for glory as Hollywood’s annual awards season moves towards its climax.
Spielberg’s political drama Lincoln leads the Oscar nominations with 12 nods, followed by Ang Lee’s 3D adventure Life of Pi with 11, and musical Les Miserables and romcom Silver Linings Playbook both with eight.
The 15-time major champion, who has not played since having ankle surgery in April, shot a three-over-par 75
After almost a year out with injury the former world number one to return to competitive tennis in January
Discussions were held to organize camps as part of various Russian team’s preparations for the 2024 Paris Olympics
The announcement at COP28 in Dubai puts Turkey in the race against Australia
Under a system in place since October 21, aid trucks had to drive for inspection to the Al-Awja and Nitzana crossing on Egypt's border with Israel before returning to Rafah, a round trip of more than 80km
Palestinian officials say 109 people killed since truce expired as aid trucks stuck on Egypt's border with Gaza
The non-Bank Division was won by the Orient Travel Team