Helen Mirren: Rebels set conditions for cease-fire

Libyan rebels run for cover after coming under heavy artillery fire from pro-Gadhafi forces along the front line near Brega, Libya, Friday, April 1, 2011. Libya's rebels will agree to a cease-fire if Moammar Gadhafi pulls his military forces out of cities and allows peaceful protests against his regime, an opposition leader said Friday as rebels showed signs that their front-line organization is improving.

Libyan rebels prepare before leaving Ajdabiya to the front line near the oil town of Brega, as the West backed off from arming the rag-tag fighters and pushed for a political solution instead, on April 1, 2011.

MAHMUD HAMS - AFP/Getty Images

A Libyan rebel plugs his ears as rebels fire a rocket at troops loyal to Libyan leader Moammar Gadhafi on the road between Ajdabiya and Brega, Libya, Thursday, March 31, 2011. An important Libyan oil town became a no man's land Thursday as rebels to the east traded rocket and mortar fire with Gadhafi's forces to the west.

A Libyan girl shows a victory gesture with her arm painted with French, U.S., Great Britain, Italian and Qatari flags during a demonstration in Benghazi, Libya, Thursday, March 31, 2011.

A Libyan rebel shells pro Gadhafi forces with mortar fire, along the front line outside the eastern town of Brega, Libya Thursday, March 31, 2011. Libya conceded Thursday that Foreign Minister Moussa Koussa had resigned but claimed that it was a personal decision driven by health problems, not a sign that the embattled regime is cracking at the highest levels.

A Libyan rebel rocket launcher misfires while shelling pro Gadhafi forces, along the front line outside the eastern town of Brega, Libya Thursday, March 31, 2011. Libya conceded Thursday that Foreign Minister Moussa Koussa had resigned but claimed that it was a personal decision driven by health problems, not a sign that the embattled regime is cracking at the highest levels.

Libyan rebels fire rocket launchers toward pro Gadhafi forces, along the front line outside the eastern town of Brega, Libya Thursday, March 31, 2011. Libya conceded Thursday that Foreign Minister Moussa Koussa had resigned but claimed that it was a personal decision driven by health problems, not a sign that the embattled regime is cracking at the highest levels.

A Libyan rebel, who was wounded sometime earlier, waits to get registered at the Libyan Red Crescent's office in Benghazi, Libya, Thursday, March 31, 2011

Libyan rebels sit at the back of a pick-up truck before leaving Ajdabiya to the front line near the oil town of Brega, as the West backed off from arming the rag-tag fighters and pushed for a political solution instead, on April 1, 2011.

Libyan rebels read the Quran on the back of a picture truck before leaving Ajdabiya to the front line near the oil town of Brega, as the West backed off from arming the rag-tag fighters and pushed for a political solution instead, on April 1, 2011.

Libyan rebels exchange fire with pro Gadhafi forces, along the front line outside the eastern town of Brega, Libya Thursday, March 31, 2011. Libya conceded Thursday that Foreign Minister Moussa Koussa had resigned but claimed that it was a personal decision driven by health problems, not a sign that the embattled regime is cracking at the highest levels.

Smoke from explosions billows on the road between Ajdabiya and Brega, Libya, as rebels clashed with troops loyal to Libyan leader Moammar Gadhafi, Thursday, March 31, 2011. An important Libyan oil town became a no man's land Thursday as rebels to the east traded rocket and mortar fire with Gadhafi's forces to the west.

Youths carry flags of the US, France, Italy, and other nations to show their support, after Friday prayers on the corniche in Benghazi, Libya Friday, April 1, 2011. Libya's rebels will agree to a cease-fire if Moammar Gadhafi pulls his military forces out of cities and allows peaceful protests against his regime, opposition leader Mustafa Abdul-Jalil, said Friday.

Libyan rebels close the western gate of Ajdabiya, Libya, Friday, April 1, 2011, as limited movement is being permitted across the frontier. The western gate is closed Friday for journalists and civilians trying to reach the front line.

An Libyan rebel carrying a machine gun waits to be allowed to cross the closed western gate of Ajdabiya, Libya as journalists and civilians try to reach the front line on Friday, April 1, 2011.