Ok, sorry if this isn't the right forum ... I have a 35mm Canon FX Film SLR (1964 vintage model) that I bought off ebay, in working condition for my photography class. I am used to digital, but quite new to Film SLRs. I replaced the battery with a new WEINCELL PX625/PX13, and I took a few pictures yesterday. It appeared to work fine. I am using 100 speed b&w film Just an hour ago, I took a picture, and after the picture was supposedly taken ... the shutter was stuck. The viewfinder is black and I think this might mean one of the mirrors is stuck? i'm not sure, but I am in a huge panic because I need this camera for my photo class, I don't have the money for expensive repairs or money to buy a new one ... if it's broken and I can't fix it, I don't know what i'm going to do. The film crank won't budge. Since there is film inside the camera, I can't open it or anything ... not sure of what to do. Even the manual doesn't help me. Is there anything I can do? any manual SLR expert that can help me? i'd greatly appreciate it very much! I searched all over and I can't find a solution for it.