This was sort of two movies in one. It started out with Angela Lansbury as a self-centered woman who was fearful that her husband (Walter Pidgeon) would be drawn back to his old flame. Lansbury was quite good as the wife who had an interesting approach to this situation. But later, the movie turned into a story about a young woman (Janet Leigh, doing a good British accent), who turns to Pidgeon for help and inadvertently causes a host of problems for him. Deborah Kerr is also good as Pidgeon's old girlfriend, but even with the good cast, the movie overall is little more than a confused soap opera, and the ending doesn't make much sense. Not one I'd recommend, unless you're a particular fan of anybody in the cast.
Review of If Winter Comes
