I'm really not a fan of screwball humour, and after the first five minutes of this perfectly choreographed series of synchronised improbabilities, accompanied by a downright irritating characterisation of "Judy" by Barbra Streisand, I fully expected to hate this film. Once it's settled down, though, and Madeline Kahn gets to grips with her equally exasperating persona, I did really start to feel that geeky rock guy "Howard" (Ryan O'Neal) was completely out of his depth as these two women took hold of his life and made every effort to trash it. Right from the start, we know that there's a…