The union representing screenwriters reached a tentative agreement with Hollywood studios to end a historic strike after nearly five months, raising hopes that a crippling shutdown of movie and television filming could be near an end.

Actors remain on strike, but the deal with writers might help them find a resolution soon as well.

The Writers Guild of America announced the deal Sunday in a joint statement with the Alliance of Motion Picture and Television Producers, the group that represents studios, streaming services and production companies in negotiations. The agreement must be approved by the guild’s board and members before the strike officially ends. That could happen this week.

The pact “was made possible by the enduring solidarity of WGA members and extraordinary support of our union siblings who joined us on the picket lines for over 146 days,” the guild said in an email to members.

In a longer message from the guild shared by members on social media, the writers were told the strike is not over and no one was to return to work until hearing otherwise, but picketing was to be suspended immediately.

The three-year contract agreement emerged after five marathon days of renewed talks by WGA and AMPTP negotiators, who were joined at times by studio executives. The terms were not immediately announced. The deal to end the last writers strike, in 2008, was approved by more than 90% of union members.

Media and entertainment companies got a small boost from the news. Shares in Warner Bros. Discovery, Paramount, Disney and Netflix all rose about 2% or less on Monday.