Beatles spokesman Geoff Baker announced the project on Thursday on the eve of the opening of an exhibition of Linda's photographs in the northern English city of Bradford.
"Paul and Linda are currently editing through some 4,000 of Linda's pictures of the Beatles -- all of which have never been seen -- in order to make the new style of movie, which they call a photofilm," Baker said in a statement.
Linda took the photographs behind closed doors between meeting Paul in 1967 and the break-up of the Beatles in 1970. The new Beatles film follows a critically acclaimed "photofilm" by Paul McCartney last year.
He selected two rolls of Linda's pictures of veteran West Coast rockers The Grateful Dead and made the still photographs move with the aid of computer technology.
Baker said the Beatles film, not expected to be completed before the end of 1997, would reveal "what is believed to be the richest and most intimate photographic archive of the Beatles".
The Beatles photofilm was expected to have a soundtrack of songs by the group that have never been released. They are on tapes of a secret jam session the Beatles recorded at the Roundhouse in London's Camden Town in 1968.
With worldwide record sales of more than 20 million albums, this year has been the most successful for the Beatles since they disbanded more than a quarter of a century ago.