President Barack Obama screened “Nuclear Tipping Point” at the White House on Tuesday night.

Guests included former officials featured in the documentary, including ex-Secretaries of State George Schultz and Henry Kissinger, former Defense Secretary William Perry and former Sen. Sam Nunn (D-Ga.). Also attending were actor Michael Douglas, Sens. George LeMieux (R-Fla.) and Bob Casey (D-Pa.),  and former Secretary of State Gen. Colin Powell.

The screening came on the same day as the administration’s new nuclear posture, which includes assurances of no-nuclear use on countries that don’t have nuclear capabilities. On Wednesday, the president is scheduled to fly to Prague to sign a new START treaty with Russian President Dmitry Medvedev, and next week Obama will host 46 countries in Washington at a nuclear security summit.