Thousands of workers at Disney's theme park and resort properties in California voted late Friday to authorize a potential strike, as contract negotiations drag on over wages, sick leave and other benefits.

The strike authorization was approved by an overwhelming margin, nearly 99 per cent of the members who cast votes, according to a union statement. The election was held by a coalition of four unions, which represents 14,000 Disney ride operators, store clerks, custodians, candy makers, ticket takers, parking attendants and other employees.

The vote does not mean a strike will happen, only that union leaders now have the option to call a strike in the event that they are unable to negotiate a new contract deal with Disney. Leaders from both sides return to the bargaining table starting Monday.

“We greatly appreciate the important roles our cast members play in creating memorable experiences for our guests, and we remain committed to reaching an agreement that focuses on what matters most to them while positioning Disneyland Resort for growth and job creation,” the company said in a statement.

Elizabeth Gonzalez, a day custodial cast member at Disney California Adventure, said in the union statement that she knows colleagues who work two and even three jobs or live in a car to make ends meet.

“I am worried as a future mom for the family I'm creating right now,” she said. "Disney can't call themselves a family friendly company while so many cast members and their families are struggling.”

Union members have been in talks with Disney over wage increases, safety measures, attendance policies and other benefits since April.