Yoko Ono has dropped her copyright lawsuit against a filmmaker who used part of John Lennon's song Imagine without her permission.

Ono and Lennon's two sons Sean and Julian joined publisher EMI Blackwood Music Inc. to launch legal action against the makers of Expelled: No Intelligence Allowed.

Ono failed to convince a judge at U.S. District Court in Manhattan, New York in June that production company Premise had infringed copyright law by using the track.

The court ruled in the firm's favor based on a "fair use" doctrine.

The late Beatle's widow confirmed she was willing to appeal the decision, saying she should have had the chance to say "no" to the filmmakers, and that they "looted" her out of the "ability to do so".

But Ono, along with EMI Records, decided on Tuesday to halt any further action.

Anthony Falzone, who acted as lead counsel for Premise in the suit, says, "We think it was clear from the beginning that our clients had every right to use the 'Imagine' clip as they did, and we're happy we've vindicated that right."

(This news article provided by World Entertainment News Network)