 SPOILER: According to separate interviews with  Michael Caine (I) (qv) and Christopher Reeve (qv), they had  hesitations regarding the filming of the infamous "kissing" scene.  Once they decided to go through with it they both consumed large  amounts of alcohol in order to keep themselves calm and drunk enough  that theyd do anything anyone asked them to do. Caine reportedly  later regretted the scene and vowed to never film another homosexual  sequence. To this day he never has.