It will be Ladies Day once again at the box office this weekend as the female-skewing romantic comedy No Strings Attached, starring Ashton Kutcher and Natalie Portman, debuts. Box office forecasters are predicting it will beat out the male-skewing The Green Hornet , but not by a lot. Strings is likely to earn about $20-23 million over the weekend, while Hornet will probably take in $17-20 million, they say. In limited release, The Weinstein Co. is set to unveil Company Men , starring Ben Affleck and Tommy Lee Jones, and Newmarket Films will release director Peter Weir's latest, The Way Back, starring Colin Farrell and Ed Harris.