Sony Corp's movie studio is delaying the January release of Marvel superhero movie "Morbius" until April 1, the studio said in a statement on Monday.

The film starring Jared Leto in the title role has been postponed several times during the Covid-19 pandemic. Its most recent planned release date was Jan 28.

For movie theatre operators, the delay is a setback as they try to rebound from extended closures during the Covid crisis.

Chains including AMC Entertainment, Cinemark Holdings Inc and Cineworld Group have been celebrating blockbuster ticket sales for Sony's "Spider-Man: No Way Home." While "No Way Home" is still playing in cinemas, operators have few other big titles on their schedule until spring.

The rapidly spreading Omicron variant has raised new concerns about whether audiences will feel comfortable heading to theatres during the pandemic.