Many actors had said they would refuse to cross picket lines.

The transport secretary also challenged Miliband to encourage tube drivers to cross picket lines.

On Friday, the Screen Actors Guild said its members would not cross picket lines to attend.

Actor James McAvoy was among several Golden Globe nominees quoted recently as saying they would not cross picket lines.

But it remains to be seen whether AFTRA members, many of whom also belong to SAG, would cross picket lines.

A fictional football league undergoes a players' strike, so teams seek out scabs to cross picket lines and play games.

WGA members threatened to picket the Globes, leaving nominees and presenters expected to boycott the ceremony rather than cross picket lines.

Predictably, the mighty truck-toting Teamsters vowed to honor their WGA brothers and not cross picket lines with their morning studio deliveries.

Ferry boat pilots and engineers, represented by separate unions, were not part of the job action but refused to cross picket lines.

The SAG has supported the Writers Guild of America and refused to cross picket lines as Hollywood has come to a halt.

Ephraim went out of his way to cross picket lines, and unleashed many awe-inspiring insults he had apparently been saving up for years.

But the hosts have been supportive of their writers and none wants to be the first to cross picket lines to resume production.

This week, students will be asked to stand with their lecturers and not cross picket lines: this will be a difficult decision for many.

That has been facilitated by a government rule that allows WGA members to cross picket lines by filing for "financial core" status.

Writers had said they would not work for the Golden Globes and actors said they would not cross picket lines to attend the show.

But truckers, stevedores and longshoremen who refused to cross picket lines lost pay, raising the question of whom the action was helping, or hurting.