 Katharine Hepburn (qv) hurt her arm in a tennis match a few weeks  before filming. She almost pulled out, but Henry Fonda (qv)  convinced her to show up to start shooting on day one. One scene was  omitted from the film in which you see her pick up a canoe by  herself with her sore arm. She never forgave Mark Rydell (qv) for  editing that scene out.