Below you will see a video documentary called "Great North". In it there is a figure captured that some believe may be a Sasquatch.
The object in question appears at the 9:19 mark in the film.
I have found two very good posts regarding background information about this particular documentary. Here are the links.
It is an interesting sequence for sure. Whether or not there is enough detail in the IMAX version of this film to obtain more data about the figure is unknown at this point. I guess we'll just have to wait and see on this one.