Glenda Jackson film to launch PBS’ ‘Masterpiece’ anniversary

LOS ANGELES — Acclaimed actor Glenda Jackson will launch the 50th season of PBS’ “Masterpiece” drama showcase next year.

The film “Elizabeth is Missing,” with Jackson as a woman in search of a vanished friend even as she copes with dementia, will air Jan. 3. It’s based on the Emma Healey novel of the same name.

Jackson, 84, is a two-time Oscar winner, for “Women in Love” and “A Touch of Class.”

“Masterpiece,” from WGBH Boston and among TV’s longest-running weekly prime-time series, has been home to award-winning shows including “Downton Abbey” and “Sherlock.”