 The film's credits list four effects contributors, including Douglas Trumbull.However, according to the rules of the Academy in effect at the time, only three persons could be nominated for their work on a single film, which would have resulted in the omission of either Trumbull, Tom Howard, Con Pederson or Wally Veevers.Ultimately, it was Kubrick's name that was submitted as a nominee in this category, resulting in his winning the award, which many consider a slight to the four men whose work contributed to the film's success.