Annette Bening imagines cutting off the heads of actors she doesn’t find attractive if they have to do love scenes. The five-time Oscar nominee, 65, said the fantasy is a technique she picked up from a former acting coach, who said if she ever ended up performing intimate moments with co-stars she didn’t find appealing to imagine replacing their heads with someone she did find attractive. She told The Times about acting with people to whom she feels “decidedly unattracted”: “Well, you imagine taking the head of that person off, and you replace it with the head of whoever it is that you’d have …