Boston Casting appears to be on the hunt for women to appear in a bikini scene, possibly in the new Bradley Cooper movie that will film in Boston in the spring. The casting call is for “Women 35-55 for 70s Movie!’’ and, as far as we know, the David O. Russell movie starring Cooper and Christian Bale is the only ’70s film set to shoot here. Boston Casting asks for “Union and Non Union women between the ages of 35-55 who are comfortable wearing bikinis for an upcoming project.’’ The call says that “thin, average and overweight’’ women should apply. If you’re interested, e-mail Boston CastingSubmit@gmail.com with a close-up photo of yourself in a bikini, along with your phone number and a headshot or candid closeup of your face. Put “BIKINI’’ in the subject line.